232 



H. M. BENEDICT 



needed for an illustration of the next topic. The changes from day 

 to day are ver^- effective in attracting continual attention on the 

 part of the students. This is further enhanced by the possibility 

 of installing the apparatus in the center of a room, or wherever it 



The demonstration herbarium in use 



will most effectively strike the eye, the swinging wings taking up 

 but little space and casting no permanent shadows. The protec- 

 tion afforded by the glass and the frames to the mounted plants, 

 is complete, and therefore such mounted specimens may be safely 

 passed around the class, and used in various ways. 



