FORMS OF RECORDS. 



47 



When the plants are ripe, notes are taken as to the relative size 

 and strength of each plot. Each plant in the plot is pnlled, counted, 

 and placed in a bundle, and a choice spike is taken from each of sev- 

 eral of the best plants that tlie best seed may be available to plant a 

 eentgener of this stock the next year. With a newly devised thrash- 

 ing machine and a specially arranged fanning mill (Plate IV, fig. 2), 

 whicli save every kernel from these small plots, the bundle is thrashed, 

 cleaned, weighed, graded, and may then be analyzed for nitrogen. 

 To the weight of this bulk grain is added that of the grain saved in the 

 packet for planting the third year. This total weight is divided by the 

 number of plants actually liarvested, thus securing the average weight 

 per plant of the progeny. The third and fourth years, a eentgener is 

 similarly planted, harvested, and tested. The records are kept on 

 blanks in the following form : 



YEARLY HISTORY SHEET. 



(Minn. Form 63.) 

 Wheat: Class name 



Nursery stock No. . From plant No. . Date 



No. . Date . 



Cent. 



Centgener Notes. 



Size of card, 5i by 8i inches; color of card, white. 



