Annual Meeting.] 
6 
[May 2, 
It contains, in addition to a large amount of unmounted material, 
2,112 mounted specimens, which have been roughly grouped as 
follows : 
Diatomaceae, 1,110 slides ; anatomical specimens, 390 slides ; in- 
sects, 250 slides; plants, 240 slides; miscellaneous, 132 slides. 
The microscopical apparatus, which accompanied this collection, 
consist of two stands made by Tolies, nine objectives, and a num- 
ber of other less valuable pieces. 
Paleontology. 
Considerable work of a difficult and delicate kind has been done 
by Miss E. D. Boardman on the Curator’s collection of Steinlieim 
shells, which, thanks to her exertions, is well advanced towards 
completion. Miss Martin has dusted the specimens of the Ameri- 
can and European collections in rooms G- and H, which had be- 
come dirty through long exposure in the old and loosely made 
cases, and has remounted a number of specimens. 
Teachers’ School of Science. 
The liberal action of the Trustee of the Lowell fund in defrajung 
the expenses of the lessons, and also in granting the use of Hun- 
tington Hall, has enabled the Society to continue its efforts to extend 
the benefit of the instruction in this school to teachers of all the 
neighboring towns, as well as to those living in Boston. The agents 
who acted in the adjoining towns and villages last year continued 
their kind offices, distributing and receiving applications and also 
tickets according to the plan of which details were given in a former 
report. The Superintendent of Public Schools in this city has also 
kindly assisted us by attending to similar technical details in Boston . 
The five lessons on “ Problems in Physical Geography,” delivered 
by Prof. W. M. Davis, during the winter of 1886-87, were so novel 
and useful to teachers, that he was invited to give a course of ten 
lessons, during the winter just past, upon the “ Pl^sical Geography 
of the United States. ” This course was in part a continuation of 
last 3 -ear’s lessons, but the addition of new matter, new models, 
more extended illustrations, and the special attention given to our 
own country, made the lectures practically distinct from those pre- 
viously given. 
