Botany and Zoology. 251 
than that recorded by Mr. Mitchell. Experiments by Baron von 
Miiller and J. H. Liihmann, upon wood two feet long and two 
inches square, gave the following results:—Weight required to 
break a truncheon of 
Eucalyptus globulus, - _2252 to 3752 Ibs. 
Eucalyptus Leucoxylon, Victorian Iron Bark Tree, ...----. 3144 * 
essmate,” 
ucalyptus obliqua, “ Messmate,”__.__- .- 1776 
Quercus alba, American White Oak,... . -- 2086 * 
“ “ it 1644.“ 
Pinus silvestris, Baltic Deal,____. i eaNen es 1358 
The vertical or crushing strain on cubes of two inches was from 
ten to twelve tons. 
So much for the strength of this wonderful wood. Now one 
word regarding the yield of wood by a single tree. At South- 
Port, Mr. James Dickinson noticed a tree of EZ. lobulus, which, 
Royal Oak of England has such an extensive literature been 
devoted at any particular period as to our Blue-Gum tree within 
might perhaps be inferred from the title, but it is far more than a 
mere catalogue. It comprises a list of the flowering plants and a 
large part of the Cryptogams, with copious notes upon the locali- 
tes, where such information seemed necessary. Mr. Robinson’s 
Valuable annotations deal with a wide range of subjects, but 
ever wander out of sight of the plant. A short and dixcriminat- 
Ing sketch of the early Botanists of Essex County adds greatly 
to the interest of the volume. G. L, Ge. 
4. Botany of California, Vol. 2; by SerENo Watson. Uni- 
versity Press, Cambridge, Mass. 1880.—This volume completes 
the Flora of the State of California. The first volume has been 
re-issued with typographical corrections ; the second volume con- 
taining all the important additions to the earlier orders. A notice 
this very attractive and most useful work will be given in a 
ume, (postage 45 cts. additional). . . 
ba Squid (Architeuthis) abundant in 1875, at the Grand 
; by A. E. Verrmu.—From Capt. J. W. Collins, now of 
Aw. Jour. Scr.—Tamp Series, Vor. XXI, No. 123—Mancx, 1881 
ve 16a 
