M. F. GUYER. Atavism in guinea-chicken hybrids. -- (Jour. 



Expt. Zool. 7, 1909, No, 4, pp. 723-745, pis. 4). E. S. R., March 

 1910, Washington. 



The author describes hybrids obtained by crossing a Black 

 Langshan cock with guinea hens. They possess a curious color 

 pattern, not present in either parent, which consists of white r 

 U-shaped vermiculations on a dark background. This, the author 

 thinks, is a return to a generalized type of color more or less 

 present in pheasants, peacocks, and other species of the same 

 family. 



F. V. THEOBALD Poultry Fleas and the Red Hen Mite. (////AT. 

 Poultry Rcc., 2, 1909, No. 2, pp. 92-94, figs. 2). E. S. R., March 

 1910. Washington. 



The common fowl flea (Ceratophyllus gallinfe], which has been 

 recorded from many other birds besides the domesticated fowl, the 

 head flea (Sarcopsylla gallinaced], and the red hen mite (Dermanyssus 

 avium), are briefly discussed. Altough ticks are not very common 

 on poultry in England, Dermacentor reticulatus has been found on 

 turkeys and Argas reflexus on poultry, including pigeons. 



W. C. FINCH. Note on partial Leucosis in a Hen. (Biometrika, 7 

 (1909), no. 1-2, pp. 234, 236, figs. 5). E. S. R. Febr. 1910 - 

 Washington. 



% 



An account of birds which were obtained by a cross between 

 an Indian game and a true Houdan. One hen turned from black 

 to spotted in her first year, the spots since that time having di- 

 minished annually. Another hen has been once black, once white,, 

 then once spotted, and again white. 



M. E. PENNINGTON. A Chemical and Bacteriological Study of 

 Fresh Eggs. {Journ. BioL Chem., 7, No. 2, pp. 109-132). 

 E. S. R. abs., No. 7. June 1910. 



In this paper, which was presented at the Congress of Applied 

 Chemistry, held in London in June, 1909, the author reports the 

 results of studies of the proximate composition of Plymouth Rock 

 and Leghorn eggs as well as the nitrogen partition in the white 

 and the character of the fat in the yolk. 



