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.

Combatting Pullorum. Eleventh International Veterinary Congress, London, August 4th to 9th, 1930.

At the closing meeting, the following resolution was passed:

Fowl Typhoid and Bacillary White Diarrhea:

In the opinion of this Congress, the method of diagnosis and prophylaxis of B. W. D. by systematic agglutination tests, carried out by qualified veterinarians, is at the present moment the procedure most to be recommmended.

Scientific Poultry Breeding and Keeping. Handbook for Everybody. Wirtschaftsgeflügelzucht und -haltung. Lehr-und Lernbuch für jedermann. F. Römer, Direktor der staatl. anerk. Lehr- u. Versuchanstalt f. Geflügelzucht, Halle-Cröllwitz, und Landwirt-schaftsrat Dr. L. Weinmiller, Vorstand der Kreisflügelzuchtanstalt Erding, unter Mitarbeit von Prof. Ambros, Schönbrunn, Dr. R. Fangauf, Steenbek b. Kiel, Minist.-Rat Dr. J. Gerriets, Berlin, Lehrer C. Herbst, Hannover, Konrektor H. Lentzsch, Halle, Minist.-Rat Dr. W. Niklas, München, Handelslehrer W. Richter, Halle, Dr. W. Scherz, Buchenhof, Direktor Dr. F. Schmidt-Hoensdorf, Halle, v. Treuenfels, Demerow. 2. erweiterte Auflage. Mit 129 Abbild. Preis kart. M. 5.60. Verlag von Eugen Ulmer in Stuttgart, Olgastr. 83.

This book of Römer and Weinmiller occupies a special place among literature dealing with poultry breeding. Leading experts in poultry breeding research have created it, so that it is not surprising that the first edition was sold out within a very short time. The new edition has been valuably supplemented and revised. All kinds of questions which engage the attention of poultry keepers and breeders are fully and clearly treated and reference is made to the most recent data obtained from practical and scientific research. Housing, feeding, utility breeding, profit making, breed questions, hereditariness, organisation are treated in the same thorough manner. From the development of the chicken in the egg to the attractively composed sales advertisement one can find everything that the breeder or keeper of the present day needs.

Feeding Trials with laying Hens. J. Holmes Martin and W. M. Insko. Agric. Exp. Station, Lexington, Ky., Bulletin no. 294

Part. I. Varying Percentages of Meat Scrap in the Mash for supplementing Milk.

Summary:

1. 1. When Barred Plymouth Rock pullets were fed a shelled-com-skim-milk ration, supplemented with a mash containing meat scrap, the average production for three years was as follows: 2½ % meat scrap—170 eggs; 5 %—162.4 eggs; 7½ %—174 eggs; and 10 %—162.7 eggs. rrhe winter averages were: 2½% meat scrap—47.3 eggs; 5 %—48.4 eggs; and 10 %—44.4 eggs.

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.

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.

Report of Dominion Poultry Husbandman, 1928. F. C. Elford. Dep. of Agriculture, Ottawa, Canada.

Table of contents:

General Conditions. The Division. World's Poultry Science Association. Breeding. Experimental Work: Hatching summary; Moisture in the incubator; DuratIon and change of fertility; Ultra violet rays in incubation; Influence of quality of shell upon hatching results; Hatchability from large and small eggs; Starvation period for chicks; Vitamin feeds and varied rations; Vitamin feeds and varied rations in rearing; The effect of sunlight upon growth of chicks; The curative effect of sunlight and antirachitic vitamin containing products in cases of severe rickets; Feed costs and gains in rearing pullets to maturity; Capons vs. roasters; Substitutes for fresh greenfeed; Vitamin feeds for egg production; Comparative value of grainless, gritless and greenfeed-lacking rations for egg production; The value of glass substitutes in laying houses; Animal protein vs. vegetable protein plus a mineral mixture for egg production; Meat meal vs. fish meal for egg production; The influence of ultra violet light upon egg production; Egg preservatives; A study of range of egg weights and possible causes. Experimental Work on the Branch Farms. Canadian National Egg Laying Contest: Registration; Reports; Inspection. Poultry Disease Work: Routine laboratory service; Infectious bronchitis of fowl; The agglutination test as a means of controlling chick mortality vlhen due to bacillus pullorum infection; Mortality study. Waterfowl. Farm, Egg and Poultry Accounts. Demonstrations and Exhibits. Co-operation with other Agencies.

The Scientific Poultry Breeder's Association. Sixteenth Annual Register. Rev. H. Midie Draper. S.P.B.A., Rudgwick, Sussex.

Contents:

Calendar for 1931. Officers and Members of the S.P.B.A. Council. Foreword (P. Hedworth Foulkes, B. Sc.). List of S.P.B.A. Permanent Committees. List of S.P.B.A. Presidents The 1930 Annual General Meeting of the S.P.B.A: „Worms in Poultry” (T. Dalling and G. Warrack); „More high Priced Eggs with Lights” (Roland C. Hartman); „Spices and Minerals” (Tom Newman); „Do you make your Farm Play?” (H. R. Hunter); „Size of Parent—Its Relation to Hatchability and Rearability” (C. E. B. Philcox); „Starting with Poultry” (Mich. F. Phelan); „Fowl Typhoid” (T. Dalling, M.R.C.V.S.); „Some Results of Culling on a Small Farm” (Mrs. T. Newman); „Breeds, Breeders and Breeding” (Miss M. Lawrence); „Coccidiosis and Hydrochloric Acid” (Mrs. M. H. Hazelhurst); „If I were Starting Poultry Farming To-morrow” (John Meekings); „A Plea for the Record Layer” (E. C. B. Boucher); „Everyday Questions—Foods and Their Analysis” (Tom Newman); ,„Inbreeding” (J. Edmondson); „Brief Hints on the Management of the Utility Duck” (James Pomfret); „The Work of the S.P.B.A. Experimental Farm” (Miss N. B. Maddison). List of County Poultry Instructors. Analysis Tables of Foodstuffs. Mineral Salts in Feeding Stuffs. List of Firms giving Discounts to Members of the S.P.B.A. Table of Railway Freight Rates by Passenger Train.