Culling of Young Poultry and of Layers. A. A. Grebenshchikov and N. P. Churilov. Under the title of the U.S.S.R. Poultry Research Institute of the Soiousptize product. State Agricultural Publishing House. “Telkolkhosguis.” U.S.S.R. Moskva, 1931. Circulation 25,000 copies, 40 pages, 23 illustrations.

In the introduction it is told that 1932 will be the last year of performing the Five Year Plan (in four years). That now in all collective as well as state poultry farms, the work must be rationalised, and as a means of the rationalisation, culling out the non-producing hens is recommended.

Studies of the Vitamin Potency of Cod-liver-oils. XXI. The Stimulation of Reproduction by Fat-soluble Vitamins. A. D. Holmes, A. W. Doolittle and W. B. Moore. Journal of the American Pharmaceutical Association, 16, 1927.

Experiments are made with F5 Rhode Islands. The results were as follows:—

Invitation to a Pullorum Conference in Hannover and the World's Poultry Congress in Rome. By Dr. te Hennepe. Sixth Congress of Specialists in Combatting Young Animal Diseases. Deutsche Tierärtzliche Wochenschrift, 1931, p. 661.

A congress of veterinary surgeons interested in the combatting of young animal diseases was held at Leipzig from October 3 to 6, 1931; 140 veterinary surgeons attended. Pullorum disease was discussed.

Annual Report on State Laying Tests 1929/30 in Germany. Jahresbericht über die Staatlichen Wettlegen des Legejahrs 1929/1930. Dr. Otto Bartsch. Editor: Fritz Pfenningstorff, Berlin.

The writer has compiled an inclusive report on all German laying tests during the last laying period. Dr. Bartsch has revised this report, not from a point of view of reporting what hens laid the most eggs, but also with a view to arriving at further conclusions from observations of individual laying tests. He treats moulting, broodiness, causes of death, feeding in connection with laying capacity, winter laying capacity, climatic influences and everything that, in his opinion, could be of influence on the results. Especially interesting is his data concerning the performance of individual birds in flocks and in individual breeds, the results of laying tests in general, according to race and breeds, and the weight of eggs in connection with the laying capacity, a problem which is at present claiming much attention. The reports on duck laying tests in East Prussia will be interesting for many readers. These tests have definitely proved, as did a report from England, that at present the laying performance of ducks is in general 30 per cent. higher than that of hens.