ADDITIONAL EVIDENCE 



123 



RESULTS OF OBSERVATIONS ON THE CAPACITY OF VARIABLE SEEDS OF 

 INCREASING THEIR WEIGHT BY ABSORBING WATER FROM THE AlR, 

 EITHER AFTER BEING COMPLETELY DEPRIVED OF THEIR COATS, OR 



AFTER BEING CUT ACROSS IN THEIR COATS. (The hygroscopic 



reaction is excluded.) 



Note. The term "variable" is applied when a plant produces both permeable and 

 impermeable seeds. With small seeds it is often more convenient to expose them to the 

 air cut in halves than to bare their kernels. The difference in the results of the two 

 methods is not very great, and will be dealt with in the next chapter. The letters 

 A, B, C, indicate only approximate estimates. 



A. Sample where most seeds are permeable. 



B. ,, ,, impermeable. 



C. ,, they are equally mixed. 



Note. The figures in parenthesis in the "bared kernels " column indicate the result 

 when the coats are included, thus enabling a comparison to be made with the data in 

 the next column. 



