164 



STUDIES IN SEEDS AND FRUITS 



SOME RESULTS ILLUSTRATING THE ABSENCE OF A TRUE HYGROSCOPIC 

 REACTION IN IMPERMEABLE SEEDS, THE SLIGHT VARIATION BEING 

 INSTRUMENTAL. (Daily observations made in the short experiments 

 only.) 



II. PERMEABLE SEEDS. (Hygroscopicity 2 to 5 per cent.) 



(The hygroscopic range of a seed is the amount of variation stated as a percentage 

 of the average weight. Thus, if a seed varied between 98 and 102 grains, the range 

 would be 4 per cent. The methods of obtaining these results are described a page or 

 two back.) 



