NEUROLYMPHOMATOSIS 



21 



The 1934 and 1935 Control Hens and Roosters 



The house in which the 1934 and 1935 experiments were conducted had 

 previously been divided into two compartments by means of chicken wire. 

 The 20 hens and 6 roosters showing symptoms of neurolymphomatosis were 

 placed in one pen, and 18 hens and 5 roosters showing no symptoms of disease 

 were placed in the other as controls. The birds in both pens were cared for in 

 as nearly the same manner as possible. No cases of neurolymphomatosis 

 developed in either the control flock or their offspring. Table 13 shows the 

 record of the control flock. 



Table 13. — Results with the Control Flock in the 1934 and 1935 



Expebiment 



F-1391 f F-500 



\ MC-98380 



F-2402 f F-500 



\ MC-98380 



F- 4281 F-1386 



F-1373 J 



F-1473 f F-1386 



\ MC-98380 



F-1493 F-1397 



F- 59 f F-1397 



\ MC-98380 



MC-98422 ' 

 MC-98423 I 

 MC-98426 

 MC-98409 



235 



202 Living 



18 



1631 



1292 



