BELLEFONTE, February 12, 1870. 

 REV. W. T. WYLIE : 



DEAR SIR : I inclose an extract from the report, suitable, I think, for the pamphlet. 



H. N. MCALLISTER. 



AGRICULTURAL COLLEGE OF PENNSYLVANIA. 



From an interesting and instructive report of the Professor of Agricu ture to the Board 

 of Trustees of the Agricultural College of Pennsylvania, for 1869, in relation to the results 

 of experiments made upon the three several experimental farms connected with that institu- 

 tion, we make the following extracts touching the Potato, verifying and illustrating some of 

 the principles set forth in the above essay : 



1st. Varieties. 



Of upward of thirty different varieties experimented upon, the Early Goodrich, Ear'y 

 Rose, and Harrison are among the best and most prolific. 



LIKE WEIGHTS OF SEED UPON EQUAL AREAS OF GKOUNI). 

 2d. Different Modes of Preparing the Seed. 



CENTRAL FARM. One fourth of Plot No^ n Early Goodrich cut tubers, yields 500 

 pounds, equal to 286 bushels per acre; large and whole tubers, yields 410 pounds, equal to 234 

 bushels per acre; medium-sized tubers, yields 419 pounds, equal to 239 bushels per acre; and 

 small tttbers, yields 486 pounds, equal to 278 bushels per acre. 



3d. Combined Diversity between Soil and Sub-soil and Common Plowing. 



CENTRAL FARM. The 4 plots, Nos. u, 16, 116, and 416 soil and sub-soil plowing yields 

 6200 pounds, equal to 221 bushels per acre; the 2 plots, Nos. 216 and 316 common plow- 

 ing yields 1845 pounds, equal to but 131 bushels per acre. 



4th. Diversity between Letting all Sprouts Grow and Thinning to Three in each Hill. 



EASTERN FARM.- Plot No. 208 : Monitors; large and whole tubers, 2i-|- pounds; not 

 thinned ; Moro Philips's superphosphate; yield 1174 pounds, equal to 168 bushels per acre. 



Plot No. 209 : Monitors ; large and whole tubers, 23 pounds ; thinned ; Moro Philips 's 

 superphosphate ; yield 1042 pounds, equal to 149 bushels per acre. 



Plot No. 210: Monitors; large and whole tubers, 15 pounds; not thinned ; stable 

 manure ; yield 860 pounds, equal to 124 bushels per acre. 



Plot No. 211 : Monitors; large and whole tubers, 14! pounds ; thinned ; stable manure; 

 yield 839 pounds, equal to 119 bushels per acre. 



5th. Diversity front Time of Cutting the Seed-Potatoes. 



Plot No. 222: Monitors; cut tivo weeks before planting ; yield 580 pounds, equal to 83 

 bushels per acre. 



Plot 223 : Monitors; cut at time of planting ; yield 819 pounds, equal to 117 bushels per 

 acre. 



Plot 220: Early Shaw; cut two weeks before planting ; yield 764 pounds, equal to 100 

 bushels per acre. 



Plot 221 : Early Shaw; cut at time of planting ; yield 907 pounds, equal to 129 bushels 

 per acre. 



Massasoit. 

 32 



