1914 



Journal of Applied Microscopy 



the temperature constant when so many persons are using the incubator, owing 

 to the continual opening and closing of the door. Dr. Moore has reduced 

 this confusion, and the difficulty of maintaining constant temperature, to a 

 minimum. 



Each of these large incubators contains 48 drawers, made of galvanized iron, 

 8 inches deep by .5 inches wide, by 20 inches long, divided into two equal com- 



FiG. 4. — Large Incubator for Students' Use. 



partments, with sides and ends perforated with large holes to permit free circu- 

 lation of air. The front of this drawer is of copper, and extends beyond the 

 sides so as to form a continuous shoulder, and when inserted into the iron 

 framework of the incubator fits tightly, thus reducing loss of heat when door is 

 opened. A name plate holder and a handle by which to pull the drawer out is 

 attached to the center of this copper plate. The iron framework containing the 



