726 Phaseolus Lunatus Beans. [march, 



It should be pointed out, however, that the quantities of 

 prussic acid yielded both by red and white Rangoon beans are 

 much smaller than those obtained from the Java and Mauritius 

 beans. As a very large number of determinations of the 

 amounts of prussic acid yielded by these various classes of 

 beans have now been made, it may be useful to summarise the 

 results in tabular form. 



Origin and Colours ot 

 Beans. 



Dunstan, 

 Henry and 

 Auld. 



Guignard. 



Kohn- 

 Abrest. 



Tatlock and 

 Thomson. 



Java. 



Prussic acid 

 per cent. 



Prussic acid 

 per cent. 



Prussic 

 acid 



Li CI L,CIll. 



Prussic acid 

 per cent. 



Mixed beans of all colours 

 Black beans... 

 Purplish-black beans 

 Wine-red beans 



JLVCULlloIl- UI ij WI1 UCdllo ... 



Bright maroon beans 

 Light brown beans with 



dark spots 

 Pale brown with dark spots 

 Cream white 



Black with white stripes ... 



0-038-0- 123 

 o- 107 

 o- 116 



— 



0-103 

 o- 104 

 0-105-0-110 

 0*062 



0-052-0-012 

 0*046 



— 

 0-052 



0*052 

 0-058 

 0*037 

 0-050 



0*041 

 o- 126 

 0-037 

 0-058 



0*027-0-137 

 0-042 

 0-031 



0*038 



0*038 

 0*027 



1YT A TTDTTTT7C 











Purplish-black 

 Brown 

 Light brown 



0-088 

 0-087 

 0-041 





— 



— 



Burma. 











Pale brown with purple 



spots 

 Cream white 



0-004-0-024 

 Nil-o ' 027 



O 'Oil 



o - oo6 





j- 0 * 0009 



France. 











" Haricots de Lima," large 

 cream 



" Haricots de Sieva," large 

 cream 



" Haricots de Cap Marbre " 



Nil. 



Traces. 

 Traces. 



Traces. 

 0-004-0-008 







Madagascar. 











White 





0-008 







