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

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88 CORK INSULATION vaporize, and when vaporization begins it occurs violently and is attended by an immediate fall of temperature to the normal boiling point. If pure water is cooled, its temperature usually falls a number of degrees below its normal freezing point before freezing actually begins, but a large amount of ice is then suddenly formed and the temperature quickly rises to the normal freezing point. These phenomena are common to most liquids, but the converse is not true ; that is, water vapor will not condense until it reaches its normal condensing point, and ice begins to melt immediately upon reaching its normal melting point. 55.— Critical Temperatures.—When a liquid and its vapor are confined in a vessel and heated, a portion of the liquid vaporizes, the pressure increases, the density of the vapor increases and possibly the density of the liquid decreases. When that temperature is reached where the density of the liquid and of the vapor become identical, the liquid and the vapor are physically identical and this temperature is called the critical temperature of the liquid. Thus the heat of vaporization of a liquid is zero at its critical temperature. In the following table the critical temperatures of various substances are given : CRITICAL TEMPERATURES OF VARIOUS REFRIGERANTS*. Substance Chemical Symbol Degrees F. Sulphur dioxide SO2 311.0 Ammonia NH3 271.4 Methyl chloride CH3CI 289.0 Carbon dioxide CO2 88.2 Ethyl chloride C0H5CI 360.5 Butane C4H10 311.0 Nitrous oxide N2O 95.7 Propane CsHg 216.0 Ethane C-Ue 90.0 Methane CH^ ' —115.6 Ether CiHioO 56.—Saturated Vapor.—A vapor is said to be saturated when it is at its maximum pressure for a given temperature, or when it is at its minimum temperature for a given pressure. 57.—Effect of Pressure on Melting Point.—Change of pressure varies but slightly the melting points of substances, but the lowering of the melting point of ice by increase of pressure 'Compiled from data by H. D. Edwards and U. S. Bureau of Standards.
MEASUREMENT OF HEAT AND HUMIDITY 89 is responsible for several common phenomena. The melting of ice at a point where it is subjected to pressure and the immediate freezing of the resulting water when it flows out of the region of pressure is known as rcgelation. The excep- tional ease with which a skater glides over the ice when the temperature of the atmosphere is not too low is due largely to the formation of a thin layer of water in the region of extra pressure under the skate runners, which water freezes almost instantly when the skate has passed and the pressure is relieved. Similarly, the ready packing of snow into balls is made possible by the melting of the snow crystals at their points of contact under the extra pressure of the hands and the immediate freezing of the resulting water as it flows out of the small regions of pressure, although snow must be near the FIG. 32.—MELTAGE OF LOWER TIERS OF ICE IN LARGE ICE STORAGES DUE TO PRESSURE IS AN IMPORTANT CONSIDERATION IN THE DESIGN OF SUCH STRUCTURES. melting point in order that regelation may be caused by the slight pressure produced by the hands. John Tyndall (1820- 1893), a British physicist, regarded the apparent plasticity of glacier-ice as due to continued minute fracture and regelation. The phenomenon of regelation is of practical importance to the manufacturer of ice because of the meltage of the lower layers of ice cakes due to the pressure of the layers stored above. 58.—Effect of Pressure on Boiling Point.—Change of pressure varies greatly the boiling point of a liquid. At a pressure of 9.198 cm. of mercury the boiling point of water is but 50° C, at a pressure of 76 cm. its boiling point is 100° C, and at
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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
Page 54 and 55: 38 CORK INSULATION Paragraph 340.
Page 56 and 57: 40 CORK INSULATION turning those st
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Page 64 and 65: IMPORTS INTO UNITED STATES CORK INS
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Page 74 and 75: 58 CORK INSULATION IMPORTS ENTERED
Page 86 and 87: 70 CORK INSULATION O" coo I lOiM <
Page 88 and 89: 72 CORK INSULATION crease by its be
Page 90 and 91: 74 CORK INSULATION the tube and mer
Page 92 and 93: 76 CORK INSULATION cooled, the air
Page 94 and 95: 78 CORK INSULATION ordinary pressur
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Page 100 and 101: 84 CORK INSULATION equal to unity,
Page 102 and 103: 86 CORK INSULATION The heat of fusi
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Page 110 and 111: 94 CORK INSULATION RELATIVE HUMIDIT
Page 112 and 113: 96 CORK INSULATION and the temperat
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Page 116 and 117: 100 CORK INSULATION INTERNAL THERMA
Page 118 and 119: 102 CORK INSULATION usually classed
Page 120 and 121: 104 CORK INSULATION lose by radiati
Page 122 and 123: 106 CORK INSULATION age wall <stron
Page 124 and 125: 108 CORK INSULATION It will be seen
Page 126 and 127: 110 CORK INSULATION H=K A (.U—U)
Page 128 and 129: 112 CORK INSULATION : equals 17917,
Page 130 and 131: 114 CORK INSULATION convection, and
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Page 136 and 137: 120 CORK INSULATION the areas and t
Page 138 and 139: 122 CORK INSULATION 79.—Tests by
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Page 142 and 143: 126 CORK INSULATION In addition to
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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
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328 CORK INSULATION the four walls
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330 CORK INSULATION load on the ref
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CHAPTER XVI. DEVELOPMENT OF THE COR
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334 CORK INSULATION "root house," t
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336 CORK INSULATION of the surround
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338 CORK INSULATION to a new positi
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340 CORK INSULATION natives who inh
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342 CORK INSULATION Nevertheless, t
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344 CORK INSULATION to the
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346 CORK INSULATION quickly form a
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348 CORK INSULATION come within the
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350 CORK INSULATION water, and the
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352 CORK INSULATION success, and su
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354 CORK INSULATION ^r T"T M // lC
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356 CORK INSULATION interlinings of
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358 CORK INSULATION Handles and Cor
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360 CORK INSULATION models, for ice
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362 CORK INSULATION Doors.—Door f
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364 CORK INSULATION triple nickel-p
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366 CORK INSULATION JEWETT SOLID PO
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368 CORK INSULATION of the opposite
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370 CORK INSULATION , waterproof co
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372 CORK INSULATION
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374 CORK INSULATION Top Iccr.—The
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376 CORK INSULATION COPELAND "DEPEN
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: 378 CORK INSULATION hours before
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380 CORK INSULATION j Household ref
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382 CORK INSULATION at the daily ex
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384 CORK INSULATION purposes and a
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CHAPTER XVII. DEVELOPMENT OF THE CO
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388 CORK INSULATION and practices p
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390 CORK INSULATION cream manufactu
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392 CORK INSULATION the ins
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394 CORK INSULATION heavily galvani
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396 CORK INSULATION dumping of the
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398 CORK INSULATION The Machine.—
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400 CORK INSULATION loss of efficie
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402 CORK INSULATION (b) Control of
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404 CORK INSULATION Modern Mechanic
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406 CORK INSULATION
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408 CORK INSULATION oning millions
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41C CORK INSULATION ing for the top
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412 CORK INSULATION Adjusliiii) Pla
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414 CORK INSULATION exactly in fron
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416 CORK INSULATION These compresso
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418 CORK INSULATION made to take si
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420 CORK INSULATION additional char
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422 CORK INSULATION The bottom lini
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424 CORK INSULATION Covers for Juni
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426 CORK INSULATION subject of inve
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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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