74 



work consists of intensive collecting in each of several localities 

 for two or three day periods with considerable travelling in 

 between stops. However, in the region of high humidity east 

 of the Great Plains the method doesn't work. 



Drying cabinet used for plant presses at Bakersfield Junior College, 

 closed and open. 



The 12 inch fan pulls air from the cabinet, the intake is at the bottom. 

 Corrugations of the cardboards which alternate with blotters in the presses 

 (now empty) are kept parallel to the air current. 



Heat or air circulation. Despite the convenience and the 

 satisfactory results obtained by drying plants above steam 

 radiators, steam heat is rarely obtainable in Arizona or Cali- 

 fornia and perhaps not often available elsewhere in the collect- 

 ing season. While the writer taught at Bakersfield Junior 

 College, California, the collections of about 30 students were 

 dried each week from February until June, and one wooden 

 cabinet 7 feet high by 4 feet wide by 21 inches deep was sufficient 



