Botany. 287 
trunk exhibited last winter in Philadelphia, and which furnished the © 
principal data of the estimate published in the May number (p. 440), 
was not taken, as we were led to suppose it was, from the famous giant 
“ Wellingtonia” felled near the head of the Stanislaus river. We 
_ learn that it came from a less gigantic tree, which grew much nearer 
to San Francisco, and that the tree was a true Redwood or Sequoia 
sempervirens. 
. (2.) This tree, although considerably smaller, is apparently as old 
as, and probably older than the great Wellingtonia, although doubt- 
less not surpassing the estimate already given. For, whereas its oldest 
— 
in New York, and he finds that they are only 1120 in number! From 
the data which Dr. Torrey has furnished we find that, on the radius 
examined, the Ist hundred layers occupy a breadth of 174 inches. 
9d hg “6 “6 14 6 
3d «“ “ “c 124 ‘“ 
4th 74 oe “ce 13 (74 
5th (74 66 73 164 “ 
6th i74 34 “cs 6é 
7th ‘74 34 ae 73 oe 
8th 74 6c “ce DB a4 
Oth “cc “cc ec 10 (73 
10th 74 46 oe 1 t a4 
1llt “ec 33 “ ec 
The remainder of 20 layers occupies over i inch. 
Will hereafter bear the name imposed by Dr. Torrey, namely that of 
Sequoia gigantea. The flowers, however, are still a desideratum. 
from Schosnitz to be identical with living species, thus pointing out the 
identity of some tertiary plants with the living, he has had the opportu- 
Dity of examining a collection of 570 specimens of Amber, containing 
Plant-remains, belonging to M. Menge of Dantzig, and 30 specimens 
‘ 
