Investigation into the differences between Barneveld and White Leghorn breeds from a genetical and breeding technic point of view. Report to the Committee of the Netherlands Genetic Society regarding breeding tests with poultry in 1926–1927 and 1928–1929. A. L. Hagedoorn. Züchtungskunde, 1930, p.450.

The investigation was carried out in four directions: 1) It was to be ascertained whether a correlation exists between various continuing characteristics appearing in combination in two breeds of poultry (Aziatic and Meditteranean breeds) (coloured eggs, white eggs, white ears, light body weight and early puberty in the other). 2) It was to be investigated whether it was possible to incorporate the qualities of „Brown Egg” and „Early Puberty” in a good laying utility breed. 3) The question was to be treated what gens have influence on the colour of the egg, the colour of the plumage, the colour of the feet etc. 4) Finally data, relating to the value of cross-breeds and their progeny as utility poultry were to be gathered.

Comparison of the Efficiency of the simplified Method of Bunyea, Hall and Dorset and the Standard Tube Test for the Identification of Carriers of Pullorum Disease. Wm. L. Bleecker, University, Fayetteville, Arkansas. Journal of the Am. Vet. Med. Association, 1931, p. 518.

Conclusions:

It is concluded that in the hands of an experienced operator if from three to five minutes be allowed before a diagnosis is madet the simplified agglutination test for the detection of carriers of pullarum disease infection is fully as efficient as the tube test. It has a number of advantages over the tube test.

The relative Values of Cod Liver Oils from various Sources. J. C. Drummond and T. P. Hilditch. Empire Marketing Bd., Pub. 35, 1930, London, pp. 129, pl. 1, figs. 5.

This is the complete report of an extensive investigation undertaken under the auspices of the Empire Marketing Board of Great Britain on the composition, manufacture, and medicinal value of cod-liver oil. The report includes a critical discussion of the methods of determining the vitamin A and D content of cod-liver oil; summaries of the color, free acidity, mean saponification value, iodine value, and content of vitamins A and D in fresh liver oils of cod and other fish obtained in various localities in Newfoundland, Scotland, Iceland, and Norway, together with more detailed analyses of certain typical oils; a discussion of the biological factors affecting the vitamin content of cod-liver oils; a detailed report of the investigation of factors involved in the technical preparation of medicinal cod-liver oil; a brief report of cod-liver oil manufacture in Newfoundland; and specifications for cod-liver oils for medicinal use and for animal feeding.

Soviet Poultry Husbandry Program. J. C. Pincus. The United States Egg and Poultry Magazine, 1931, p. 2.

„A thorough study of Russia is, at the present time, impossible. Never-theless, the most superficial type of analysis will show that the Soviet Government has a good chance to maintain itself and to bring its plans to a substantial degree of success.” Wallace Bett Donhaln, Dean of the Graduate School of Business, Harvard University.