250 EUCALYPTUS. 



consequent difficulty in working. Its general advantages 

 are hardness, durability and strength. Besides these good 

 qualities I have seen polished wood specimens from species 

 of this genus at the different World Expositions that were 

 strikingly beautiful. I have presented notes only on the 

 species that seems to me most important. The concentric 

 wood layers are often indistinct and are in my examina- 

 tions no indication of age. 



E. acmenoides White mahogany. A tough, strong, 

 useful timber. One of the most durable. Uses posts, piles, 

 girders, etc., and general building. Color, pale. Height, 

 40 to 60 feet. Sp. gravity, 1.066 (67^ Ibs. per cubic foot). 

 The specific gravity in each of the species varies consid- 

 erably. What I have given is generally the average of all 

 the examinations accessible to me. 



E. amygdalina Peppermint-messmate. In this species 

 the first difficulty we encounter is the lack of differentia- 

 tion of the numerous striking varieties. Timber does not 

 twist in drying, splits easily especially when taken from 

 trees in glens or on bottom lands. Uses shingles, pail- 

 ings, rails; also for keelsons and planking in ships. Not a 

 superior fuel. Comparatively light, floats in water. Spe- 

 cimen cut 25 years weighed 48 Ibs. 10 oz. per cubic foot. 

 Color, pale yellow. Height from 100 to 350 feet. 



E. botryoides Swamp mahogany or blue gum. Valu- 

 able timber, hard, tough, durable. When grown on rich 

 soil considered one of the best timber trees of the species 

 (Maiden). When grown on coast sands it is useful for 

 sawing and fencing, though then the sterns are often 

 gnarled (Kirton). Used for knees of boats, posts, wagons, 

 especially felloes. Generally very durable under ground. 

 Does not split easily, Height, 50 to 100 feet. 



