1890.] PUBLIC DOCUMENT — No. 33. 185 



Determination of Albuminoid Nitrogen (1888). 



Potatoes {1887). 



[I. Polaris, health}' tubers ; II. Beauty of Hebron, healthy tubers ; III. Beautj- of 

 Hebron, healthy tubers; IV. Beauty of Hebron, scabby tubers] 



