11.") -J 



Journal of Applied Microscopy 



At the right of the north entrance is the private laboratory and office of the 

 head of the department. Adjoining this on the west is another private laboratory, 

 from which a door opens immediately into the general laboratory. At the left of 

 the north entrance is a room used for the more advanced classes in microscopical 

 work. This opens by double doors into the laboratory in the northeast corner 

 of the building, which is also used for microscopical work. By means of the 

 double doors these two rooms can be thrown together, in case of exceptionally 

 large classes. Inasmuch as the building is seldom used in the evening, and as 

 it was necessary to have gas in all parts of the building in any case, the building 

 has not been wired for electric light. 



PRIVATE LABORATORY AND OFFICE. 



In the laboratories for microscopical work, each table is supplied with gas 

 jets, and when it is necessary to use artificial light for class work, portable gas 

 lamps with Welsbach burners are furnished the students. In the author's 

 experience, the Welsbach burner is by far the most pleasant light for microscopi- 

 cal work. The plans show clearly the position of the sinks and the acid closets, 

 which are distributed freely in the various laboratories. In the arrangement of 

 the tables all are so placed as to face the windows. The author has a personal 

 objection to microscopical work with a side light. It is to him extremely annoy- 

 ing, and it seems desirable that the student should work under the best condi- 

 tions ; consequently, in the various laboratories, the tables are arranged in two 

 lines, one on the wall immediately facing the windows, and the other a few feet 

 back. It is found that this gives much better working light than to arrange the 

 tables in alcove fashion from the walls, and it is also fully as economical of floor 

 space. Our room is so ample at present that it is possible in all our classes to 



