Annual Meeting.) '^SO [May i, 
'I'lu' ti\'l(l course in the jvutuiiiii, also coiKliictt'd l»y Mr. Barton, 
consisted i>t' ten trips in tlie lielil. Excursions, occupying two 
(lays each, wore made to tlie lloosac Tunnel, Mt. Greylock, and 
Xewi)ort. The average attendance was 38.5. 
The spring course in field work by Mr. BartcMi has heen begun 
and will he reported upon in the next annual repoi-t. A full 
account of the methods of work jiursued in these field excursions 
was given in the last annual report and need not he repeated 
here. 
A class in mineralogy under Mr. Barton began on December 
8, 1894, and ended on April 13, 1895, having had 17 lessons of 
(avo hours each. The number of applications for this course was 
very large and in consequence of this a special circular was 
issued requesting each person who was granted a ticket of admis- 
sion to sign an agreement to remain a member of the class during 
the complete four years' course in geology, mineralogy being the 
first year of this course. This agreement was signed by about 
115 persons, and tickets were issued to 11*2 persons. Special 
arrangements were made with the Massachusetts Institute of 
Technology for the accommodation of this large number in two 
divisions of 56 each. 
For the first five weeks both divisions met in the lecture hall 
of the Society, then 11 exercises were held with each division in 
lloom 12 of the Rogers Building of the Institute, and finally the 
last exercise was held in the original hall. The average attend- 
ance for the course was 92.94. The second division has been 
mentioned above as paid for by the teachers themselves 
and was therefore included under the genei'al heading of the 
Teachers' School of Science. 
The method of instruction was as folloAvs : The larger number 
of the class had little or no knowledge of chemistry. In con- 
sequence of this the first lesson was devoted to an exposition 
of the fundamental principles of that science and of the principal 
facts relating especially to its application to mineralogy. 
The next four lessons were devoted to a study of the physical 
properties of minerals, especial stress being laid upon crystal- 
lography. After this, all but the last lesson were spent upon the 
study of the s])eciraens themselves, in which each member was 
