123 



Upon this basis the many varieties of potatoes grown during 1800 at the Central 

 Experimental Farm have been tested, and an estimation of their contained drjMnatter 

 and starch made. These have been calculated from the specific gravity, using the 

 table ])repai-ed by Holdefleiss. The results by this method, while not pretending to 

 scientific exactness, show undoubtedly the approximate and relative proportions of 

 starch possessed by the potatoes examined. 



to 



On an average, seven fair specimens of each variety were taken, from which 

 determine the " average weight of tuber," and the " spejjific gravity." 

 The results of this investitration are jriven in the followinir table, in which the 



varieties are ari'anged in the order of decreasing merit: — 



Name. 



Rural Blush 



Carter's Magnum Bonum 



Early Onion 



Fidelia 



Richter's Schnee Rose 



Alexander Prolific 



White Star 



" Large " from British Columbia. 



"Blue" 



Richter's Improved 



Clark's No. 1.. 



Sharpe's Seedling 



Gleason's Late 



yt. Patrick 



P]arly Maine 



Carter's Sukreta 



Wonder of the World 



Burpee's Superior 



Early Eating 



White Sprout 



Beauty of Hebron 



Empire State 



Six Weeks Round Wlilic 



Early Ohio 



Snow Flake 



Early Albino 



Ruby J 



Sugar 



Burpee's Seedling 



Dumfries Early White 



May Queen, Early 



Late Goodrich 



Thorburn's Paragon 



Carter's Holborn Abundance .... 



Early Callao 



Rosy Mom 



Prairie Seedling 



Flower of Eden 



Compton's Surprise 



White Star 



Sukreta 



Ohio Gunner 



King of the Russets 



'■ International Seed Co." 



Holton Seedling 



May Queen, Early 



Vanguard 



Member of Parliament 



Pride of America 



Crown .Jewel 



Lee's ]''avor.i'ite 



Sclmolmajster 



Average 



Weight of 



Tuber. 



Sijecific 

 Gravity. 



1099 

 1097 

 1095 

 1095 

 1095 

 1093 

 1091 

 1091 

 1090 

 1090 

 1089 

 1088 

 1088 

 1088 

 1038 

 1087 

 1086 

 1086 

 1086 

 1086 

 1086 

 1086 

 1086 

 1085 

 1085 

 1085 

 1085 

 1085 

 1085 

 1085 

 1085 

 1085 

 1084 

 1084 

 1084 

 1083 

 1083 

 1082 

 1082 

 1081 

 1081 

 1081 

 1081 

 1081 

 1081 

 1080 

 1080 

 1079 

 1079 

 1079 

 1079 

 1079 



Percentage 

 of 



Dry Matter. 



23-25 

 22-81 

 22-37 

 22-37 

 22-37 

 21-95 

 21-53 

 21-53 

 21-32 

 21 32 

 21-12 

 20 92 

 20-92 

 20-92 

 20 92 

 20-73 

 20 -.54 

 20-54 

 20-54 

 20-54 

 20-54 

 20-54 

 20-54 

 20-25 

 20.25 

 20-25 

 20-25 

 20 - 25 

 20 25 

 20-25 

 20-25 

 20-25 

 20 17 

 20 17 

 20 17 

 19 99 

 19-99 

 19-81 

 19 81 

 19-63 

 19-63 

 19-63 

 19-63 

 19-63 

 19-63 

 19-46 

 19-46 

 19-30 

 19-30 

 19-30 

 19 -.30 

 19-30 



