THE KELLERMAN PLANT PRESS 



137 



still enough on the prairies to use the field press. This makes 

 the securing of good specimens much more difficult. For in 

 nature every leaf and flower is perfectly spread out, and if clapped 

 into the press quickly, all this natural grace of position is well 

 preserved. But the prairie winds blow our papers about hope- 

 lessly, and dry our plants before we have time to seek a sheltered 



Fig. 1 The Kellerman Press on its rack. 



spot. So we must collect in vasculums, and spread our speci- 

 mens on newspapers as best we can in the laboratory or tent. 

 I had less difficulty collecting in the desert of New Mexico and 

 in the misty forests of Washington State than on the Iowa prairie ! 

 My laboratory press consists of two light slat sides, inherited 

 from the days of blotters. We wrap them in strong paper to 



THE PLANT WORLD, VOL, 15, NO. 6, JUNE, 1912. 



