Proceedings of the Society. 7 



The other occasion was on December 15th, when invitation 

 cards were issued for a microscopical exhibition in the Society 

 lecture room. Some seventy-eight microscopes were on the tables, 

 and many interesting objects were shown. Among them was a 

 living Hydra, exhibited by Mr. Geo. B. TAvitchell, the circulation 

 of blood in a frog by Ur. Walter A. Dun, section cutting by Dr. 

 Allen, of Glendale, and many others. The company gathered 

 together expressed themselves highly gratified, and the Society 

 can be sure that receptions and exhibitions of this kind are of 

 great importance in keeping it before the public, as well as 

 enabling the citizens to know of the existence of our institution. 



The feature of the past year, however, which has been most 

 prominent in the work, has been the series of lectures given under 

 the Society's auspices. The first course given was one on Prac- 

 tical Analytical Botany, for the benefit of the teachers of the 

 public schools especially. This course began April i8th and con- 

 tinued every Saturday morning from 10 to 11 o'clock until June 

 20th. The average attendance was twenty, and as the accommo- 

 dations were limited to twenty-five, it can be seen the lectures 

 were appreciated. They were given by your Custodian, and were 

 devoted to the explanation of the manner of analysis of between 

 forty and fifty flowers. 



The second course was also for the benefit of public school 

 teachers, and was on Physiology and Hygiene, and given by Dr. 

 Walter A. Dun. Some sixty- five tickets were issued to applicants, 

 and the first few lectures were attended by from thirty to forty 

 teachers. At the end of the course, however, enthusiasm slack- 

 ened, and from twelve to fifteen was the average number. The 

 course began on October 3rd and lasted till Deceml)er 12th, ten 

 lectures in all, one Saturday being omitted. These lectures were 

 illustrated by blackboard sketches, experiments and microsco])ic 

 specimens. 



The third and last series was the regular Popular Scientific 

 course, which has attracted much attention and become a neces- 

 sary part of the winter programme of the Society. The arrange- 

 ments were made for this course by the middle of December by 

 the Lecture Committee, and on Friday, January 8th, the first one 

 was delivered. They followed at intervals of one week and the 

 course was concluded on the 19th of March. The following were 

 the subjects and the lecturers : 



