6 HILL ON CONSTRUCTIONAL WOODS OF BRITISH GUIANA. [Selected 



CRABWOOD (Carapa Guianensii), Specific Gravity 0'656. A brown 

 wood much resembling mahogany, takes a fine polish, turns well, 

 and makes most durable furniture. It is an excellent wood for 

 flooring-boards, partitions, etc., in house building, and is also used 

 for masts and spars. It is usually supplied in logs 30 feet to 

 50 feet in length and 1 foot to 1 foot 8 inches square. 



WALLABA (Eperna Falcata), Specific Gravity 1-050. A dark-red 

 wood saturated with a red sticky resin, which renders the freshly- 

 exposed surface sticky and gives the wood a characteristic smell 

 when being sawn or adzed. It is extensively used for house frames, 

 roof shingles, vat staves, posts and palings, and is most durable, 

 standing exposure to all conditions, wet or dry, but above ground 

 it is subject to attack from wood ants. It cleaves easily and 

 straight, and staves and shingles are prepared in this way. It can 

 be obtained in logs 40 feet to 60 feet in length and 1 foot to 

 1 foot 8 inches square. 



MORA (Dimorphandra Mora), Specific Gravity 1 029. The loftiest 

 tree of the Colony, often attaining a height of nearly 200 feet. 

 The wood is of a light-red colour, close-grained, exceedingly tough, 

 difficult to split and saw, planes well and smoothly but slowly, and 

 takes a good polish. It is used in shipbuilding, and ranks as one 

 of the eight first-class woods at Lloyd's, being exceedingly durable 

 and resisting dry rot. It makes excellent railway sleepers, and 

 on account of its toughness it would probably prove a rival to 

 jarrah and karri, the Australian red woods, for street paving. 

 Bullet tree should also prove an excellent material for this purpose. 

 In the Colony mora is largely used in boat-building, natural crooks 

 or timbers being cut from the huge buttresses of the tree. It can 

 be obtained in logs of over 100 feet in length and 1 foot 

 6 inches to 2 feet square. 



CIROUABALLI (Nectandra), Specific Gravity 0' 6 10 to 0' 830. There 

 are two varieties of this wood known as " brown " and ** yellow " 

 silverballi or siruaballi. It is used for planking of boats and 

 vessels, masts and booms, is insect-resisting, works easily, turns 

 well, and takes a fine polish. It can be had in logs GO feet to 

 80 feet in length and 1 foot 4 inches to 2 feet 6 inches square. 



SURADANNI (Meliaceae Cedrela), Specific Gravity^ 0'S46. A dark 

 deep-red-coloured wood with black streaks, works well, and takes 

 a tine polish. It is used for making Indian dug-out canoes, planking 

 boats, wheelwright work, furniture, etc., and is obtained in logs of 

 50 feet in length and 1 foot 2 inches to 1 foot 3 inches square. 



fcJiMAiiui'A (Pii-racna ttfi.-iindi*), Sprdjic Gravity 0-475. This is a 

 jn<>st useful wood for partitions and other inside house-work, as it 



