1982 



Journal of Applied Microscopy 



-HaniVe 



Ha«AU 



~1 ^ K..W. ' 



3-/'. — Side View of Tray. 



CotV, 



CotW 



3-c. — Plan of Container. Has hinged cover 

 with handle on top. 



?)-d. — Top View Showing Tray in Place. 



vj-i'. — Plan of Tray. 



Fig. 8. — Sputum Box Container. Made of copper, reinforced with angle iron, and air tight. 

 Tray is made of stiff zinc, reinforced with angle iron. 



INCUBATOR FOR USE IN WATER ANALYSIS. 



It is necessary during the various months of the year to have some sort of 

 an appliance in the nature of an incubator in which plates of water samples in 

 gelatin will grow at a temperature from 2U to "24 degrees C. The diagram pre- 



_B n SL 



(^ 



c»tf\« 't 



JnWL 



Incubator for Use in Water Analysis. A and B are openings entering the water jacket, into 

 each of which is brazed a ^-inch brass pipe 1^ foot in length. In the center of each pipe 

 is a brass valve. 



sented is a Bausch & Lomb incubator modified so as to permit of a constantly 

 running stream of water through the water jacket from bottom to top. The 

 temperature of the instrument is regulated in the ordinary manner by a low 



