EUCALYPTUS 



577 



The following tables showing form factors and bark allowances have 

 been compiled from the measurements made in 1912 : 



3. Eucalyjptus Globulus : form factors., Nilgiri plantations. 



Remarks. 



Average of 179 felled trees. Form factor, /, 



obtained from the formula / = - where v = 



volume of tree including bark, 5 = sectional area 

 at breast height, and h = total height of tree : 

 s and V obtained from true sectional area, iir -. 



4. Eucalyptus Globulus : allowance for bark thickness, Nilgiri plantations. 



24. Eucalyptus gomphocephala, DC. Tooart. 



A tall fairly shady tree. Bark persistent, rough and dark on old stems, 

 greyish and smooth on younger stems and branches. Wood hard, strong, 

 heavy, durable, difficult to split, used for ship-building, piles, bridge-construc- 

 tion, and other purposes. Western Australia, near the coast on limestone 

 formation. Has been tried since 1909 in the Simla hills, and so far has done 

 moderately well below 6,000 ft. Has recently been tried at Lahore and has 

 succeeded fairly well hitherto, reaching a height of 16 ft. in four years. 



25. Eucalyptus goniocalyx, F. v. M. Mountain gum, spotted gum of 

 Victoria. 



A very tall tree, in rich valleys attaining 300 ft. in height, but often 

 much smaller and tending to branch low. Bark persistent, wrinkled or fissured, 

 but somewhat variable. Wood hard, tough, and durable, difficult to split, 

 used for boat-building, construction, wheel-work, posts, &c. Victoria and 

 New South Wales ; a rough-barked variety grows on low dry and stony ranges, 

 and a taller variety with smoother bark is found in hilly country up to 3,000 ft., 

 descending into wet valleys. Not usually gregarious. Has been tried since 

 1909 in the Simla hills, and has succeeded moderately well at elevations below 

 4,000 ft. Has been tried on the plains of northern India, but without success. 

 It has recently been tried at Mercara in Coorg, and shows some promise. 



26. Eucalyptus Gunnii, Hook. Swamp gum, cider gum. 



A tree reaching large dimensions, but often crooked, and sometimes 

 stunted. The leaves have not the strong aromatic odour characteristic of most 

 eucalypts, and are therefore readily browsed by cattle and sheep. Bark 

 constantly exfoliating in long strips, exposing the younger whitish bark. Wood 



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