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BRIDGE REPAIR/REHABILITATION FEASIBILITY STUDY

Bridge Repair_Rehabilitation Feasibility Study - Town to Chatham

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2 U.S. DEPT. OF AGRICULTURE HANDBOOK NO. 207<br />

In view of the expanding market and the uncertainty<br />

of the present resources of the small<br />

number of timbers being utilized, the need for<br />

using the lesser known species is of first importance.<br />

This applies both to the areas having abundant<br />

timber supplies and to the islands having<br />

insufficient forest, reserves, yet many unused<br />

timbers.<br />

Lack of knowledge, particularly by the consumer,<br />

seems the principal deterrent to the utilization<br />

of lesser known woods. Needed is informat<br />

ion on physical and mechanical properties, as well<br />

as knowledge of air seasoning, kiln drying, durability,<br />

machining characteristics, and resistance to<br />

insects and marine organisms. Prospective users<br />

should also have the benefit of reliable recommendations<br />

on the acceptable uses for the different<br />

timbers and an estimate of their present and potential<br />

availability.<br />

In view of the above considerations, the Fourth<br />

Session of the West Indian Conference held in<br />

1950 recommended that a future conference be<br />

convened to consider the agricultural potentialities<br />

of the Caribbean area, with special reference<br />

to developing the timber trade. Later, the objective<br />

was restricted to a study of the present and<br />

potential timber trade. The conference, held at<br />

Port of Spain, Trinidad, in April 1953, was attended<br />

by representatives from most countries and<br />

islands of the Caribbean area.<br />

Conference delegates agreed on the need for<br />

compiling and publishing a list of the timbers of<br />

present and potential regional importance. They<br />

also agreed that this document should cover the<br />

entire Caribbean, including the independent republics,<br />

and should contain all available information<br />

on the selected timbers. The principal timbers<br />

described in the text were selected largely<br />

by member countries of the Caribbean Commission<br />

and do not necessarily include all timbers of<br />

present or potential importance in the entire<br />

Caribbean region.<br />

Countries represented in the selection of timbers<br />

are as follows: British Guiana, French Guiana,<br />

Surinam, and British Honduras on the<br />

continent; Jamaica, Dominican Republic, and<br />

Puerto Rico in the Greater Antilles; Guadeloupe,<br />

Dominica, Martinique, St. Lucia, St. Vincent,<br />

Grenada, Trinidad, and Tobago in the Lesser Antilles.<br />

Although Cuba and Haiti are not included<br />

in this group, they are well represented by the<br />

selections made for other islands in the Greater<br />

Antilles. But important timbers in other parts<br />

of the Caribbean area are not discussed in detail<br />

unless they are also presently or potentially important<br />

in the above countries or islands.<br />

The conference by resolution directed the<br />

Secretariat of the Caribbean Commission to ask<br />

the Tropical Forest Research Center of the U.S.<br />

Forest Service for assistance in the project. In<br />

answer to that request., this publication was prepared.<br />

It presents, to the best of the author’s<br />

knowledge, a summary of all available and worthwhile<br />

information on the 71 important timbers in<br />

that part of the Caribbean area described above.<br />

SELECTION OF IMPORTANT<br />

CARIBBEAN TIMBERS<br />

Foresters and other representatives of the Government<br />

attending the 1953 Timber Conference in<br />

Port of Spain, Trinidad, selected an initial list of<br />

54 timbers of present or potential commercial importance.<br />

The number was later increased to 71<br />

as additional timbers were suggested. This number<br />

will surely increase in the years ahead : Remote<br />

areas will become more accessible to improved markets,<br />

and further studies will be made of the<br />

quantity and quality of many woods, currently<br />

little known. The final selection of timbers covered<br />

in this work and the species chosen are essentially<br />

as suggested by the participating<br />

governments. The timbers are listed by their preferred<br />

trade and botanical names in table 1.<br />

TABLE 1.— Present and potential commercial timbers of the Caribbean<br />

Trade name Scientific name Page<br />

Andira inermis (W. Wright)<br />

Angelin --------- H.B.K.<br />

{ ----------------- 27<br />

A. spp. - - - - - - - - - - - - - - - - - 27<br />

Angelique 28<br />

Aromata --------{ Dicorynia guianensis Amsh. --<br />

Clathrotropis macrocarpa<br />

Ducke ------------------- 30<br />

C. brachypetala (Tul.)Kleinh. -- 30<br />

Baboen ---------- Virola surinamensis (Rol.)<br />

Warb. -------------------- 30<br />

Bagasse - - - - - - - - -{ Bagassa guianensis Aubl. ----- 33<br />

B. tiliaefolia (Desv.) R. Ben. - 33<br />

Urban -------------------- 36<br />

Banak ---------- Virola koschnyi Warb. --------<br />

Baromalli -------- { Catostemma commune Sandw. 30<br />

- 38<br />

C. fragrans Benth. ---------- 38<br />

Balata. ---------- Manilkara bidentata (A. DC.)<br />

Balsa -----------<br />

Chev. --------------------<br />

Ochroma pyramidale (Cav.)<br />

34<br />

Trade name Scientific name Page<br />

Bethabara ------- Tabebuia serratifolia (Vahl)<br />

Nicholson ---------------- 39<br />

Bois gris --------- Licania ternatensis Hook. f. - -<br />

41<br />

Broadleaf -------- Terminalia latifolia Sw. - - - - - -<br />

42<br />

Bullhoof --------- Drypetes brownii Standl. ------<br />

43<br />

Dipholis salicifolia (L.) A.<br />

Bustic ----------- DC.<br />

{ ---------------------- 44<br />

D. spp. --------------------- 44<br />

Cedrela mexicana M. J. Roem.<br />

Cedar, Central<br />

{<br />

- 45<br />

C. odorata L.<br />

American<br />

---------------- 45<br />

C. guianensis A. Juss. -------- 45<br />

47<br />

{<br />

47<br />

49<br />

Courbaril --------<br />

Hymenaea courbaril L. -------<br />

H. davisii Sandw. -----------<br />

Crabwood ------- Carapa guianensis Aubl. ------<br />

Dakama --------- Dimorphandra conjugata<br />

(Splitg.) Sandw. ----------<br />

Determa -------- Ocotea rubra Mez ------------<br />

52<br />

53

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