212 



VARIETIES. 



Observed 

 Specific 

 Gravity. 



Calculated 



Dry 



Constituents 

 per cent. 



Renown T103 



Abundance TlOO 



Schoolmaster T099 



Windsor Castle 1-097 



Stourbridge Glory T097 



Reliable 1*095 



Surprise T095 



Blue Giant ... .- T095 



Bruce T095 



White Elephant 1'095 



Perfection 1-094 



Satisfaction 1-094 



Dreadnought .. 1-094 



King of the Russets T093 



Early Crimson Flourball T093 



Colossal 1-093 



Reading Russet ... .. T091 



Cosmopolitan ... ... ... ... ... 1 090 



Main Crop 1-088 



Supreme 1 086 



S. Seedling 1-086 



Hoi born Abundance 1086 



Reading Giant 1085 



The Daniel 1-085 



Webber's Early Beauty | 1'OSO 



24-8 

 24-2 

 24-0 

 23-6 

 23-6 

 23-1 

 23-1 

 231 

 23-1 

 23-1 

 229 

 22-9 

 22-9 

 22-7 

 22-7 

 22-7 

 22-3 

 220 

 21-6 

 21-2 

 21 2 

 21-2 

 20-9 

 209 

 19-7 



" The above specific gravities were taken by Mr. E. 

 H. Smith in the following manner : A solution of 

 common salt in water was prepared, of a specific 

 gravity of about 1*150. Twelve tubers, taken at 

 random from each variety and cleaned, were im- 

 mersed in the solution, and water added until one- 

 half of the tubers sank and the other half remained 

 suspended. The specific gravity of the brine was then 



