BOTANICAL INFORMATION. 343 
intends completing this year the publication of the * Flora Italica.'— 
Bonplandia, October 15th, 1853. 
Gum Trees of Van Diemen’s Land. 
The following very interesting information on the Measurements of 
different Gum Trees in the vicinity of Hobart Town, has been kindly 
communicated to us by His Excellency WriLLIAM Denison, EsQ., the 
Governor of Van Diemen’s Land. 
No. 1. 215 feet high. Girth at 6 ft. from the ground, 14 ft.; at 
14 ft. from the ground, 11 ft. : 
No. 2. 1843 ft. high. Girth at 5 ft. from the ground, 12 ft. 3 in. 
No. 3. 1813 ft. high. Girth at 5 ft. from the ground, 10 ft. 
No. 4. 188 ft. high. Girth at 6 ft. from the ground, 16 ft. 10 in. 
. No. 5. Large tree in gully on flanks of Mount Wellington, 205 
ft. high, but the top had broken off by the wind, it had probably been 
from 30 to 40 ft. higher. Girth on the ground, 76 ft.; girth 21 ft. 
from the ground, 25 ft. 
No. 6. Gum-tree in Tasman's Ha 130 ft. to the first branch. 
Girth at 5 ft. from the ground, 16 ft.; girth at the first branch, 7 ft. 
4 in. 
No. 7. Stringy-bark, 114 ft. to the first branch, 192 ft. total height. 
Girth 5 ft. from the ground, 15 ft. 
No. 8. Gum-tree, 199 ft. high. 
No. 9. Gum-tree, extreme height, 127 ft. Girth at 2 ft. ïi in. from 
the ground, 4 ft. 9 in.; girth at 22 ft. 4 in. from the ground, 3 ft. 
2 in.; circumference without bark at 2 ft. 4 in. from the ground, 4 ft. 
23 in., but there was a projection at one point, and the average section 
had a radius of 73 in. The radius was divided into three parts, two 
of 3 in. and one, the outer, of 14 in.; the number of annual rings in- 
each division was then counted: in the first 3 in. there were 26 rings; 
in the second, 26; in the third, of 14 in., 12 or 13: total, 64 or 65 
rings. 
In another tree, whose average diameter was 57 in., radius 28°5 in., 
the surface of the section being planed and the radius divided into sec- 
tions of 3 in., the number of rings in each section beginning from the 
centre was as follows :— 
