M. C. Lea on Nitroglucose. 381 
the Table Mountains, and of course anterior in age to the pe- 
riod of volcanic activity and overflows of lava, which have hith- 
erto been considered as marking the close of the Pliocene era, 
a catastrophe which appears to have exterminated the other 
members of the Pliocene fauna. 
If the mastodon survived the catastrophe which extermina- 
ted the hippopotamus, rhinoceros, tapir, &c., and continued 
through the Post Pliocene, to the appearance of man, it yet re- 
mains to be proved that man was his companion prior to the 
dawn of the existing epoc 
New Haven, March 25, 1868. 
Art. XLI.—WNote upon the occurrence of fossil remains of the 
Tapir in California; by Wau. P. Buaxz. 
The remains of Tapir occur in the auriferous gravel of 
Wood’s creek, near Sonora in Tuolumne county, California. 
They were found by gold miners at a depth of about forty feet 
below the surface, and were presented tome by Dr. Snell of 
Sonora. A specimen submitted to Prof. Owen at the British 
- Museum was recognized as the “ crown of the left lower molar 
tooth of a tapir, and another specimen as the posterior epiphy- 
sis of the cervical vertebra of a hoofed animal, probably a 
young tapir.” Numerous teeth of the Mastodon have been 
found in the same region, together with stone implements of 
various forms. Some of the latter, according to the state- 
ments of Dr. Snell, were taken from the deep placer deposits 
which underlie the lava of Table Mountain. 
ART. XLIL—Witroglucose ; by M. Carzy Lea. 
first to disso ve, and then to separate out again, in the form of 
a greyish paste, which, w thrown into water and freed from 
the adhering acid, becomes nearly white 
