HARDWOOD TIMBERS OF CENTRAL AMERICA 119 
Green-heart.—This wood is a native of British Guiana 
and species are found in adjacent parts of South 
America and in the West Indian Islands. It is an 
invaluable wood for many purposes, and ranks as 
first-class in Lloyd’s list of shipbuilding timbers. It 
has a recorded dry weight of 64 to 75 Ibs. to the 
cubic foot, and is of a brown colour, with an occasional 
greyish-green cast. It is extremely strong—one of 
the strongest in existence—and is unequalled in its 
flexibility. |The chief virtue, however, which it possesses 
is its resistance to the teredo worm when used for piles 
and other work in sea-water, being unsurpassed in this 
particular by any other wood. It is exported principally 
in the form of moderately squared logs, which range 
up to extreme lengths, and is largely used for the above- 
mentioned sea-coast work, and also in the building of 
bridges and for other constructional purposes where 
durability and strength are needful. A minor use is 
the manufacture of fishing-rods, the flexibility of the 
wood making it an ideal material for the making of 
fly-rods. 
Mora.—Another fine wood from British Guiana, 
which is produced from one of the most valuable and 
also one of the largest trees which exist in that possession. 
It has been at times largely used in ship construction, 
being rated like Green-heart as first-class. Unlike 
that wood, however, it will not resist the teredo worm. 
It is obtainable in large dimensions and the wood, 
dark, reddish-brown in colour, is heavy, hard, strong 
and most durable. It is said to have poor working 
qualities, and is only fit for heavy constructional 
purposes. Very little has been used since iron took 
its permanent place for the building of ships. 
Snakewood.—A_ choice tropical wood principally 
obtained from British Guiana. This is one of the most 
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