Cork insulation; a complete illustrated textbook on cork insulation ...

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: 378 CORK INSULATION hours before starting test. Weigh ice at the start of test proper. Weigh ice left at termination of test proper. Obtain data: (a) Temperature of food chamber (t). (b) Temperature of room (T). (c) Square feet of surface exposure (S), calculated on exterior dimensions. To determine Ice Economy, substitute in the following formula: IX 144 R = Sx (T—t) where R is the rate of heat transmission, which may be defined as the number of B.t.u. that pass through one square foot of surface daily when the difference between the surface is 1° F. ; I is the number of pounds of ice melted daily; 144 is the B.t.u. required to melt one pound of ice; S is the surface exposure; T is the average atmospheric temperature; and t is the average temperature of food chamber. Score as follows SCORE FOR HEAT TRANSMISSION Value for R Rate 1.13 20 1.63 18 2.0O 16 2.33 14 2.66 12 3.00 10 3.33 8 3.66 6 4.00 4 4.33 2 4.66 1 5.00 3. Humidity.—In making humidity tests, a wet and dry bulb thermometer should be used. Take twelve readings at intervals of one hour. See U. S. Bureau of Standards' tables* for readings calculated upon dif- ferences in temperatures of wet and dry bulb thermometers. Score as follows SCORE FOR HUMIDITY Humidity 55 to 65% Rate 8.0 65 to 76 7.5 45 to 55 7.5 40 to 45 7.7 75 to 80 6.4 30 to 40 6.0 80 to 85 4.8 20 to 30 4.8 85 to 95 90 and over 2.4 0.0 20 and under 0.0 4. Circulation of Air.— ^Credit a maximum of 5 for probability that cold air will readily pass from the ice compartment to and through the food compartment and back again to the ice. If ice compartment is ample, credit 2. If doors do not fit snugly, subtract 1. If any wall is moist, subtract 3. 5. Interior Finish.—Ease of cleaning refers to cleaning of food chamber, all shelves therein, and the drain pipes. If ease of cleaning is ideal, credit 5. If interior finish is hard and non-absorbent, credit 2. If color is white, credit 5. *See Appendix for tables mentioned. :
CORKBOARD INSULATED REFRIGERATOR 379 6. Drainage.— See that the trap in the drain pipe works. If there is proper trapping, credit 2. If there is proper tubing, credit 1. 7. Exterior Finish.— If exterior, including doors, has soHd surface, easily cleaned, credit 1. If finish is durable and lasting, instead of easily flaked or chipped, credit 2. If hardware is simply constructed, durable and easily handled, credit 2. John R. Williams, M.D., carried on considerable research into refrigeration in the home to obtain data for a paper to be presented before the Third International Congress of Re- frigerating Industries. Dr. Williams obtained considerable interesting information in reference to the construction and performance of household refrigerators in actual use, the room temperatures under which they operate, the box temperatures at which food is stored, the relative amounts of ice used, and so forth. He points out most emphatically that the weakness of most "ice boxes" is in poor <strong>insulation</strong>, having found that very few refrigerators in common use have an efficiency above 25 per cent. He says Indeed the low priced boxes used in the homes of working people are probably less than 15 per cent, efficient. This means that of 100 pounds of ice put into a refrigerator, at least 80 pounds were used in neutralizing the heat which percolates through the walls. It is worthy of note that the market is flooded with these shoddy ice boxes. No less than 75 different makes were found among the 243 examined. The U. S. Bureau of Standards, the New York Tribune Institute, the University of Illinois, the Good Housekeeping Institute, the National Electric Light Association, the Armour Institute of Technology, the Geo. B. Bright Engineering Lab- .oratory, and probably many others, have performed interesting and valuable tests on ice and mechanically cooled refrigerators. The methods of testing have varied so widely, how- ever, that the results of one laboratory are not safely com- parable with the results of another; and it is in the direction of standardization of method of testing, so as to make the results of all properly conducted tests readily and safely available for comparison, that attention should be given. :
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^oofe^a- 1842.4 This book may be ke
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Cork Insulation A
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To the Memory of JAMES EDWARD QUIGL
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tion of cork to other and more remo
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viii TABLE OF CONTENTS CHAPTER VI.
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X TABLE OF CONTENTS CHAPTER XIII. C
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xii TABLE OF CONTENTS CHAPTER XVIII
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2 CORK INSULATION floats for nets,
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CORK INSULATION vfany attem])ts lia
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6 CORK INSULATION •^ 4.—Home of
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8 CORK INSULATION and fifty feet an
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CHAPTER II. CORK STRIPPING. 6.—Re
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12 CORK INSULATION the cork oak tre
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14 CORK INSULATION seasoning prelim
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CHAPTER III. USES OF CORKWOOD AND U
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S CORK INSULATION 12.—Importance
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20 CORK INSULATION usually scraped,
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22 CORK INSULATION ful utilization
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24 CORK INSULATION from capillarity
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26 CORK INSULATION in place and spi
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28 CORK INSULATION for cold storage
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30 CORK INSULATION very substantial
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Z2 CORK INSULATION came The Nonpare
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34 CORK INSULATION glass bottle, al
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36 CORK INSULATION merit and an eff
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38 CORK INSULATION Paragraph 340.
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40 CORK INSULATION turning those st
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42 CORK INSULATION tip
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44 CORK INSULATION IMPORTS INTO UNI
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46 CORK INSULATION IMPORTS INTO UNI
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IMPORTS INTO UNITED STATES CORK INS
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so CORK INSULATION IMPORTS INTO UNI
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52 CORK INSULATION < i 2
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54 CORK INSULATION
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56 CORK INSULATION
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58 CORK INSULATION IMPORTS ENTERED
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70 CORK INSULATION O" coo I lOiM <
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72 CORK INSULATION crease by its be
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74 CORK INSULATION the tube and mer
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76 CORK INSULATION cooled, the air
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78 CORK INSULATION ordinary pressur
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80 CORK INSULATION sion. If a subst
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CHAPTER VIII. MEASUREMENT OF HEAT,
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84 CORK INSULATION equal to unity,
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86 CORK INSULATION The heat of fusi
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88 CORK INSULATION vaporize, and wh
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90 CORK INSULATION a pressure of 35
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92 CORK INSULATION of such air at t
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94 CORK INSULATION RELATIVE HUMIDIT
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96 CORK INSULATION and the temperat
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98 CORK INSULATION perature of the
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100 CORK INSULATION INTERNAL THERMA
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102 CORK INSULATION usually classed
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104 CORK INSULATION lose by radiati
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106 CORK INSULATION age wall <stron
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108 CORK INSULATION It will be seen
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110 CORK INSULATION H=K A (.U—U)
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112 CORK INSULATION : equals 17917,
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114 CORK INSULATION convection, and
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116 CORK INSULATION metal boxes wit
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118 CORK INSULATION the test box wi
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120 CORK INSULATION the areas and t
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122 CORK INSULATION 79.—Tests by
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124 CORK INSULATION a narrow limit,
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126 CORK INSULATION In addition to
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128 CORK INSULATION applications we
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130 CORK INSULATION
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132 CORK INSULATION j;aii 03 O .O 2
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134 CORK INSULATION
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136 CORK INSULATION
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138 CORK INSULATION
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140 CORK INSULATION
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142 CORK INSULATION
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144 CORK INSULATION
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146 CORK INSULATION
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148 CORK INSULATION
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ISO CORK INSULATION ^ I CO « O :s
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152 CORK INSULATION
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154 CORK INSULATION
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156 CORK INSULATION o ffi K K a ,=5
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158 CORK INSULATION
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160 CORK INSULATION o ^ J W to
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162 CORK INSULATION
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164 CORK INSULATION
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166 CORK INSULATION Section XI of *
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168 CORK INSULATION capillarity, el
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170 CORK INSULATION conceivable min
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172 CORK INSULATION test consists o
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174 CORK INSULATION 85.—Convenien
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176 CORK INSULATION basement except
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CHAPTER XII. PROPER THICKNESS OF CO
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ISO CORK INSULATION i ness that wil
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182 CORK INSULATION that a small ch
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184 CORK INSULATION 91.—Proper Th
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186 CORK INSULATION license alone i
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188 CORK INSULATION In new structur
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190 CORK INSULATION ure, in closed-
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192 CORK INSULATION corner of the r
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194 CORK INSULATION should be rever
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196 CORK INSULATION cold storage ro
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198 CORK INSULATION In the early da
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200 CORK INSULATION Until comparati
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202 CORK INSULATION overcome obstac
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204 CORK INSULATION introducing pur
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206 CORK INSULATION Pure air is dif
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208 CORK INSULATION ing capacity. I
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210 CORK INSULATION A hard, repress
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212 CORK INSULATION storage room is
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216 CORK INSULATION joists of such
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218 CORK INSULATION and delicately
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220 CORK INSULATION slight variatio
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222 CORK INSULATION filler and then
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224 CORK INSULATION ating less heat
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226 CORK INSULATION The first petro
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228 CORK INSULATION to be used in a
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230 CORK INSULATION Flash Point is
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232 CORK INSULATION A suitable Asph
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234 CORK INSULATION enveloping memb
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236 CORK INSULATION fying agent, on
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238 CORK INSULATION at 105° C. The
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CHAPTER XIII. COMPLETE SPECIFICATIO
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242 CORK INSULATION 116.—Finish.
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244 CORK INSULATION a second layer
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246 CORK INSULATION one layer of ..
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248 CORK INSULATION CE/LING :-)::):
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250 CORK INSULATION into which cork
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252 CORK INSULATION 106.—Ceilings
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254 CORK INSULATION insulated, one
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256 CORK INSULATION compounds.* The
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258 CORK INSULATION to all joints i
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260 CORK INSULATION »
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262 CORK INSULATION 110.—Floors.
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264 CORK INSULATION the size of the
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266 CORK INSULATION Asphalt cement.
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268 CORK INSULATION shall then be e
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270 CORK INSULATION To the reasonab
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272 CORK INSULATION butted tight, a
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274 CORK INSULATION mixed one part
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276 CORK INSULATION consisting of .
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278 CORK INSULATION of . . .-inch p
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280 CORK INSULATION sand* for each
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282 CORK INSULATION To prepare Asph
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284 CORK INSULATION must be applied
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286 CORK INSULATION plied, and the
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288 CORK INSULATION 122.—Second L
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290 CORK INSULATION 124.—First La
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292 CORK INSULATION that the forms
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294 CORK INSULATION and all joints
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296 CORK INSULATION Break all joint
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298 CORK INSULATION board uncoated
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300 CORK INSULATION area (one face
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302 CORK INSULATION [ storage doors
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3(X CORK INSULATION surface*, and t
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506 CORK INSULATION floor, on a lev
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308 CORK INSULATION See that the fi
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310 CORK INSULATION line of the fla
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312 CORK INSULATION corkboards are
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314 CORK INSULATION mixed product*,
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316 CORK INSULATION floors and baff
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318 CORK INSULATION History also sh
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320 CORK INSULATION into natural ic
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322 CORK INSULATION them from freez
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324 CORK INSULATION smaller establi
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326 CORK INSULATION on the "Mechani
Page 342 and 343: 328 CORK INSULATION the four walls
Page 344 and 345: 330 CORK INSULATION load on the ref
Page 346 and 347: CHAPTER XVI. DEVELOPMENT OF THE COR
Page 348 and 349: 334 CORK INSULATION "root house," t
Page 350 and 351: 336 CORK INSULATION of the surround
Page 352 and 353: 338 CORK INSULATION to a new positi
Page 354 and 355: 340 CORK INSULATION natives who inh
Page 356 and 357: 342 CORK INSULATION Nevertheless, t
Page 358 and 359: 344 CORK INSULATION to the
Page 360 and 361: 346 CORK INSULATION quickly form a
Page 362 and 363: 348 CORK INSULATION come within the
Page 364 and 365: 350 CORK INSULATION water, and the
Page 366 and 367: 352 CORK INSULATION success, and su
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Page 370 and 371: 356 CORK INSULATION interlinings of
Page 372 and 373: 358 CORK INSULATION Handles and Cor
Page 374 and 375: 360 CORK INSULATION models, for ice
Page 376 and 377: 362 CORK INSULATION Doors.—Door f
Page 378 and 379: 364 CORK INSULATION triple nickel-p
Page 380 and 381: 366 CORK INSULATION JEWETT SOLID PO
Page 382 and 383: 368 CORK INSULATION of the opposite
Page 384 and 385: 370 CORK INSULATION , waterproof co
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Page 388 and 389: 374 CORK INSULATION Top Iccr.—The
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Page 394 and 395: 380 CORK INSULATION j Household ref
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Page 398 and 399: 384 CORK INSULATION purposes and a
Page 400 and 401: CHAPTER XVII. DEVELOPMENT OF THE CO
Page 402 and 403: 388 CORK INSULATION and practices p
Page 404 and 405: 390 CORK INSULATION cream manufactu
Page 406 and 407: 392 CORK INSULATION the ins
Page 408 and 409: 394 CORK INSULATION heavily galvani
Page 410 and 411: 396 CORK INSULATION dumping of the
Page 412 and 413: 398 CORK INSULATION The Machine.—
Page 414 and 415: 400 CORK INSULATION loss of efficie
Page 416 and 417: 402 CORK INSULATION (b) Control of
Page 418 and 419: 404 CORK INSULATION Modern Mechanic
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Page 422 and 423: 408 CORK INSULATION oning millions
Page 424 and 425: 41C CORK INSULATION ing for the top
Page 426 and 427: 412 CORK INSULATION Adjusliiii) Pla
Page 428 and 429: 414 CORK INSULATION exactly in fron
Page 430 and 431: 416 CORK INSULATION These compresso
Page 432 and 433: 418 CORK INSULATION made to take si
Page 434 and 435: 420 CORK INSULATION additional char
Page 436 and 437: 422 CORK INSULATION The bottom lini
Page 438 and 439: 424 CORK INSULATION Covers for Juni
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428 CORK INSULATION lading next to
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430 CORK INSULATION warmest and the
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432 CORK INSULATION CHART IV The we
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434 CORK INSULATION That precooling
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436 CORK INSULATION Mr. President,
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438 CORK INSULATION the elimination
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440 CORK INSULATION Now let me proc
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442 CORK INSULATION of the eggs on
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444 CORK INSULATION It may be said
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446 CORK INSULATION occur. Salting
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448 CORK INSULATION the two inches
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450 CORK INSULATION ables as anythi
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452 CORK INSULATION We are continui
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454 CORK INSULATION Our object was
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456 CORK INSULATION As air circulat
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458 CORK INSULATION ers and cross s
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460 CORK INSULATION States standard
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462 CORK INSULATION temperature and
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464 CORK INSULATION CORK PAINT.* Fo
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466 CORK INSULATION strengthening c
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468 CORK INSULATION only 0.38; that
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470 CORK INSULATION
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472 CORK INSULATION possible throug
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474 CORK INSULATION ing and heating
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476 CORK INSULATION that for each o
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478 CORK INSULATION case of other g
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480 CORK INSULATION because it will
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482 CORK INSULATION ECONOMY OF GASO
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484 CORK INSULATION That this amoun
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486 CORK INSULATION form on walls a
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488 CORK INSULATION Practically all
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490 CORK INSULATION for the pebbles
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492 CORK INSULATION nailed to three
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494 CORK INSULATION QUANTITIES OF C
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496 CORK INSULATION EXAMPLE OF PURC
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498 CORK INSULATION Portland cement
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500 CORK INSULATION FREIGHT CLASSIF
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502 CORK INSULATION CORK PIPE COVER
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504 CORK INSULATION to give a bette
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506 CORK INSULATION 3. Ice Water Th
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508 CORK INSULATION brought tightly
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510 CORK INSULATION A GOOD DRINK OF
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512 CORK INSULATION The Cost and th
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514 CORK INSULATION cause the agree
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516 CORK INSULATION Legality— In
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518 CORK INSULATION In general, unl
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520 CORK INSULATION the work should
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522 CORK INSULATION (1) Page $8, pa
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524 CORK INSULATION Brooks ice crea
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526 Page Depreciation in efficiency
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528 CORK INSULATION test of asphalt
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530 CORK INSULATION ice, formation
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532 Page Sealed air cells 169 Seali
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534 CORK INSULATION Page of heat by
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GOOD BOOKS YOU SHOULD HAVE These ar
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DATE DUE
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