Improvement of Laying-Capacity. Come si può raddoppiare la Produzione invernale di Uova. R. Giuliani, Pollaio Provinciale di Firenze. Rivista Zootecnica, 31 Luglio 1932.

In order to decide the influence of a good cock on bad hens, 24 peasant hens were bought in 1930 in the vicinity of Florence. These were divided into 2 groups of 12 each. The average production of the first group amounted to: winterlaying 17.6 eggs, totally 97 eggs. Of the second group these figures were resp. 13.1 and 103.

Poultry Breeding. Morley A. Jull. Senior Poultry Husbandman. Bureau Animal Industry, U.S. Department of Agriculture. New York: John Willy and Sons, Inc. — London: Chapman and Hall, Limited. 1932.

The purpose of this book is to convey to its readers some conception of the manner in which various characters possessed by the domestic fowl are inherited. The discussion of fundamental principles involved should stimulate further research concerning the problems raised. The results of various lines of research work are reviewed and an extensive list of literature references is given, so that the investigator, teacher, and student each has a ready reference for review purpose.

The Preparation of Meat-scraps. Meat-scraps Problems. De Bereiding van Diermeel. Diermeelproblemen. Dr. B. J. C. te Hennepe. Tijdschrift voor Diergeneeskunde, 1931, p. 918.

The author describes three different processes for the preparation of meatscraps used in the Netherlands, pointing out their advantages and disadvantages. (1) The wet process, (2) The dry process, (3) The extraction process by means of Benzin. A summary of the economical results obtained is being given. The author points further out, that according to his opinion the question, as to how far the intrinsic value of free fatty acids influences the feeding value of the meal, especially as regards chicken food, is quite entitled.

Vitamin D for Chicks. The Effects of an insufficient Supply of Vitamin D on Growth of the Skeleton and internal Organs of Chickens. E. J. Sheehy and K. Sheil. Royal Dublin Society, Proceedings Vol. 20, No. 16.

In this paper the importance of supplying Vitamin D to chicks for the purpose of preventing leg weakness, unthriftiness, and crooked breast is emphasised. Direct light is the most potent source of this particular vitamin which is also supplied in concentrated form by cod liver-oil and to a lesser extent by green foods.

First International Pullorum Congress at Hannover, October 1931. Erste Europäische Konferenz von Fachleuten für Geflügelkrankheiten in Hannover am 23. und 24. Okt. 1931. Prof. Dr. Mieszner, Dr. te Hennepe, Dr. Berge and Dr. Schütt. Deutsche Tierärztliche Wochenschrift, 1932, p. 33.

At these Pullorum-days 26 specialists in poultry diseases from Germany, England, Turkey and Holland were present. The meetings were held in Prof. Mieszner's Institute in Hannover. During the opening speech, Dr. te Hennepe, Secretary for Europe of the World's Poultry Science Association, drew the attention to similar meetings in America already taken place, and that he, in conjunction with Prof. Mieszner, had taken the initiative for the present meeting.

Value of Agglutination-Test. - Der Wert der Agglutinations Methode bei der weissen Ruhr. Dr. Sachweh, München. Berliner Tierärztliche Wochenschrift, 1931, p. 845.

A number of chickens were subjected, every three months, to the agglutination test. During this test it appeared that the agglutination titer varied considerably. All animals, of which a great number reacted positively at the beginning of the test, reacted negatively at the end thereof. This made it possible to comprehend the strongly varying results of the different tests. A group of 400 positive reacting hens gave healthy chicks. The wide advertising of the rapid blood test results in the poultry farmers making their own researches, and owing to the varying results obtained, it forces them to attach no value thereto.