293 



These results may be represented graphically by diagrams 5-8, which 

 ,ve been prepared on the same principle as those for the results of predic- 

 m from a single month s production. The general excellence of the agree- 

 ?nt (considering the fact that there are only 415 birds upon which equa- 



IS IS 20 12 24 26 26 30 31 34 36 38 40 42 44 46 48 SO S2 S4 SS SB SO 8i 



DIAGRAM 7. Tests of the prediction of annual production from the combined record of two 

 :isecutive months. Tests for May to August. 



tins based upon an entirely different series are being tested) renders 

 failed discussion of these diagrams superfluous. 



The most interesting feature of these tables is, however, the comparison 

 ttween the value of two-months observation and of single-month obser- 

 Vtion as bases for the estimation of the total (annual) egg-producing 

 cpacity of the organism. 



IETICS f&amp;gt;: My 1921 



