and Laboratory Methods. 



1013 



sterilizer. All these sterilizers are grouped together on a large stone table, 

 fitted with gas, steam, and water. Over this table, and projecting a foot on 

 either side, hangs a large hood into which passes the steam escaping from the 

 sterilizers. In capacity these sterilizers are able to supply quick, convenient, 

 and certain sterilization for a section of twenty-five students at one time. 



Another excellent feature is the fire-proof incubator room containing the 

 mammoth incubators. The fire which previously destroyed this laboratory was 

 supposed to have been started from the incubators, and in the reconstruction 

 great care was taken to prevent the possibility of a recurrence of the disaster. 



Fig. 3. — Sink with Drying Boards ; Sterilizing Table with Hood. 



A room 10 by 12 feet, thoroughly fire-proof (asbestos walls lined with sheet 

 tin, cement floor, etc.), is placed in the south end of the laboratory. It 

 communicates by one heavy sliding door with the laboratory. In this room 

 are placed the incubators for the use of students. Another room, smaller 

 in size, but similarly protected, and contiguous to the former, contains the 

 private incubators of Dr. Moore. In the room for the use of students are placed 

 two large incubators, made specially for this laboratory. A cut of one of these 

 incubators accompanies this article. 



In large classes there is usually great confusion caused by students getting 

 their cultures mixed, and difficulty in getting at cultures, especially when stored 

 on a shelf in common with a number of others. Besides it is impossible to keep 



