Annual MeetlMj?.] 134 fMay 3, 
eastern ])art of tlie State and has pupils who liave been incited 
to do this sort of teaching in all parts of the United States, but it 
has never before been able to direct its efforts for a series of years 
to the express purpose of jircjiarino; i»ersoiis to teach different 
branches of Natural History. 
The methods of work and examinations Avere described in the 
last annual report. 
There are some very obvious facts in our late experiences. The 
demand for the proper sort of teacliing in geology and botany is 
in excess of the seating capacity of the laboratories. The extent 
of this excess cannot be estimated, because no systematic attempt 
has been made to do so and because we have not needed to adver- 
tise the courses since the year in which they were begun. It is, 
however, perfectly plain that we could easily double, and perhaps 
treble, the number of those now attending these coui'ses if 
adequate facilities could be offered. 
The field course in geology l>y Mi-. George H. Barton, i-eferred 
to in the last annual report as the spring course and begun on April 
2 before the expiration of the last official year, consisted of seven 
lessons and excursions ending on May 14. The average atten- 
dance was 27.0, and total number of tickets issued sixty. Thie 
similar course given in the autumn consisted of ten lessons and 
excursions into the field, beginning on September 24 and ending 
November 26. The average of attendance and total number of 
tickets issued were about the same as in the spring. 
The spring course in geology for 1893 was begun by Mr. Barton 
on April 29, and is now in progress. 
The winter course in historical geology, also given by Mr. Barton, 
consisted of seventeen lessons (fifteen being the required number) 
of two hours each, beginning December 3, 1892, and ending April 
22, 1893. The whole number of tickets issued was sixty, and the 
average attendance was 40.7. This was the fourth course in a 
series consisting of mineralogy, lithology, petrology, and historical 
geology. The modes of study and other details were given in the 
last annual report, and the results this year were as satisfactory 
as those obtained in the preceding coui'se. 
Dr. R. W. Greenleaf's results have been so novel and remarkable 
that T give his report in full. 
Thirty-five of the former members of the class in botany returned 
to their places, and fourteen new members were given tickets, 
