1872.] 181 [Annual Report. 
MAMMALS. 
This collection, which is entirely composed of skins, has 
been most carefully watched, and is believed to be free from 
Anthreni, otherwise it is in the same condition as last year. 
\ 
MICROSCOPY. 
This department remains in the same condition as last 
year. ' | 
GEOLOGY AND MINERALS. 
The geological collection remains as it was last year, in 
fair order but not in a satisfactory condition. It is hoped 
that during the coming year the Committee will rearrange 
the collection, so as to make it more interesting to visitors 
and more instructive to students. The Mineralogical Col- 
lection is in perfect condition, every specimen labelled and in 
its proper place. 
The Geological Department has been increased by speci- 
mens presented by various individuals, among which may be- 
noticed a series from Mr. L. 8. Burbank, illustrative of his 
paper upon the EKozoon, some lavas from Dr. 8. Kneeland 
and a set of polished marbles from Mr. T.T. Bouvé. A mag- 
nificent specimen of rock composed of jasper and oxid of iron, 
weighing about a ton, brought from Lake Superior, has also 
been presented by the Massachusetts Institute of Technology. 
The Mineralogical Department has been enriched by the 
presentation of various specimens during the year, of which 
may. be particularly mentioned two large ones from Mr. F. 
Alger. One a huge crystal of beryl, the other a mass of 
rock, containing numerous beryls large and small. These 
were both brought from the town of Grafton, N. H., many 
years since, by the late Mr. Francis Alger, father of the donor. 
They will soon be properly placed in our entrance hall, where 
they will be objects of much interest. 
