20 ANNUAL REPORT OF THE 
have desired to use the Mineralogical library. These gentlemen 
at very considerable financial and personal sacrifice have built up 
and steadily cared for this excellent though small library, as a 
matter of absolute departmental necessity, yet with very little aid 
from the University corporation. Seeing the equally great need 
of the Department of Geology and Geography they have generously 
opened their library to its students, thereby seriously adding to the 
personal work and responsibility of the two professors, who still 
are doing the clerical work of the library. 
Professor McAdie reports that for the Blue Hill Meteoroleaaal 
Observatory the year has been one of progress. ‘The Observatory 
is back again in its old place of leadership in meteorological work 
in this country. The Mount Weather Observatory on which 
something like $400,000 of public money had been expended has 
been abandoned by the Government at a time when advanced 
aerological work in this country was most needed. It is true the 
output has been incommensurate with the amount expended but 
none the less we regret the closing of an institution equipped to 
carry on certain work inaugurated at Blue Hill. 
One course of instruction was offered at the Observatory for 
graduate students, namely Meteorology 20. One graduate stu- 
dent, preparing himself for work in a foreign Weather Service 
took the course. Also one candidate for Doctor’s degree served as 
one of the Observatory staff. ‘The Director gave three illustrated 
public lectures in Boston during the year. 
Several undergraduates visited the Observatory and some 
familiarized themselves with the routine of the Observatory, the 
care of instruments and preparation of meteorological forms. 
Gifts to the Observatory included the following: — from Mrs. A. 
Lawrence Rotch, the generous sum of $1,574.53 for running ex- 
penses; from Professor E. C. Pickering (one-half cost of printing 
Annals, estimated) $400.00; Mr. Livingston Davis, fire extin- 
guishers; the Elizabeth Thompson Science Fund for experiments 
in connection with frost, $150.00. 
One of the professors of the Department has suggested ite advis- 
ability of installing a modern seismograph in the Observatory. 
A space of 400 or even more square feet is available and there are 
certain excellent scientific reasons why a high grade seismological 
station should be maintained at this point in connection with the 
aerological records. It would add to the strength of the Depart- 
ment if such action could be taken. The study of earth waves 
should be correlated with the studies of air waves and ocean waves. 
