34 dall: origin of philosophical society 



provided. Dr. Woodward brought forth his new slides and ex- 

 plained the working of the modifications that he made to his 

 microscope in order to produce this work, and then threw on the 

 screen the beautiful figures, sometimes of an ahnost invisible 

 diatom enlarged to six feet high, showing every detail of its 

 beautiful structure. They were very interesting indeed. In fact 

 I might go on for a long time with reminiscences of what was 

 brought before us; but we are to hear from others of what devel- 

 oped in the Society as it grew larger and larger and the number 

 of scientific men increased, and how bodies of our members formed 

 other societies and gave to them independent lives. 



