1972 



Journal of Applied Microscopy 



Incubator for the Maintenance of Constant Low Temperatures. 



Some time ago we published a description of an incubator intended to main- 

 tain a temperature of 20°C.^ Certain inconveniences which the use of this 





Fig. 1. 



apparatus entailed caused us to construct a simpler one. This has been running 

 for a considerable time and has proven satisfactory, the temperature variations 

 seldom exceeding one degree. 



^ Brooklyn Medical Journal, February, 1899. 



