NON-ABSORBING 



ATMOMETER MOUNTINGS 



(ft\ 



B 



Don't Let Rain Enter Your Atmometers 

 and Spoil Your Results 



The mounting which is illustrated here oper- 

 ates so as to allow the loss of water by the 

 Atmometer cup in the usual manner, and 

 also to prevent, almost completely, the ab- 

 sorption of rain by the cup and the conse- 

 quent backing of water into the reservoir. 

 These mountings are made according to the 

 specifications of J. W. Shive and are de- 

 scribed in detail in The Plant World 18, 

 pp. 7-10, Jan. 1915. 



The entire mounting is self-contained and 



not readily put out of adjustment. It is 



furnished complete, with quart reservoir, 



mercury, and caps. Each instrument is 



packed in a neat wooden box, ready for 



transportation to the field. 



In ordering please specify the type of At- 

 mometer cup that will be used with it. 



Each $5.00 



Per Ten $45.00 



THE PLANT WORLD, Tucson, Arizona 



