576 



C. C. Guthrie 



fetus; Wh. F, white fetus; Sp. F, spotted fetus; Wh. legs, white legs; Bl. Ck., black chick; Wh. Ck., 

 white chick; Sp. Ck., spotted chick; O, egg, not tested. 



Matings: Beginning February 14 to 17, hens Bi, B3 and fVs, beginning February 28, were trod 

 daily by the black Leghorn Rooster (BR) until March 5. From March 5 to March 29 they were not 

 mated. From March 29 to date, they have been trod daily or every other day as before, i . e., by the 

 black rooster. 



Hens ffi, IV2 and B2 were trod as the above, only the white leghorn rooster (WR) was used. 



March 29 hen Ba died from indigestion. Postmortem examination showed her ovary to be in the nor- 

 mal position and in appearance normal for a laying hen both in size and structure. April 4, hen W2 was 

 found to be very badly infested with lice. Considerable difficulty was experienced in ridding her of them 

 and she became emaciated. 



Hen fVs met with a serious accident early in January in which she suffered a compound fracture of the 

 femur from which she recovered only in time to be added to the pens February 25. 



The fowls have all been closely confined since February in quarters by no means ideal for the produc- 

 tion of eggs for hatching. 



The failure to hatch fertile eggs is attributed largely however to poor incubation. 



