774 EXPEEIMENT STATION RECOED. 



50 laying White Plymoutli Rock liens for tlie 5 years 1907 to 1911, inelusivi?^. 

 By means of charts he indicates how, by the selection and breeding of early 

 and good layers, he has increased the egg production of his flock from 3,966 

 eggs in 1907 to 5,573 eggs in 1911. 



Increasing' the winter yield of eggs, W. T. Wittman (Pcnn. Dept. Agr. Buh 

 219, 1912, pp. 91, pis. 20). — ^This treats in a popular and practical way of the 

 subjects of poultry breeding, management, incubation and brooding, feeds and 

 feeding, houses and yards, and table eggs and egg yield. 



The growth of ducks on four different kinds of feed, A. Magnan (Compt. 

 Rend. Acad. Sci. [Paris], 154 (1912), A^os. 23, pp. 1535-1538; 25, pp. 1714-1717; 

 155 {1912), No. 2, pp. 182-184). — Rouen ducks made a less rapid growth on 

 a vegetable diet than ou a diet of either flesh, fish, or insects. The greatest 

 final weights were obtained on the fiesh diet. Growth seemed to be arrested 

 more quickly on the fish and insect than on the vegetable diet. Those fed 

 vegetables laid fewer eggs, but the color of the yolk was of a deeper yellow 

 than the eggs of the other lots. The liver and kidneys of the slaughtered lots 

 were larger than where the feed consisted of fish and insects. 



The turkey as an egg producer, W. X. Irwin {Amer. Breeders Mag., 3 

 (1912), No. 3, pp. 204-208, figs. }) .—Attention is called to the value of the tur^ 

 key as an economical producer of eggs, a feature of the poultry industry which 

 has previously been overlooked. 



Partridges and partridge manors, A. Maxwell (London, 1911, pp. XII +327, 

 pis. 16, figs. 8). — A popular work in which the partridge is treated as a valuable 

 by-product of the English farm. 



Fur farming for profit (New York, 1912, pp. 188, figs. 50). — "A practical 

 text-book on breeding fur-bearing animals, either as a distinct industry or in 

 connection with specialized or general farming." 



Oyster culture studies in 1910, J. Nelson (New Jersey St as. Rpt. 1910, pp. 

 185-218, pis. 2). — ^The spatting observations were continued in 1910 as in pre- 

 vious years, but the season was unusual in several resi^ects. The fi'y in the 

 water appeared and disappeared in a more erratic way than usual. There was a 

 large amount of spawn in the oysters, but it was given out grudgingly though 

 at frequent intervals, and the fry so prepared seemed to disappear without 

 setting. Spatting did not tnke place before June 28 nor after July 7, and the 

 climax occurred in the middle of the first week in July. At that time there 

 was not a large amonnt of fry in the water. The nearer the shells were planted 

 to the day of the spatting climax, the better the catch. Shells planted June 20 

 bore an average of 3 spat per shell, those planted June 26, 13, those planted July 

 1, 14, while those planted on the day of the climax bore more than twice as 

 many. Therefore, even a few days' sojourn of the shells in water was sufficient 

 to deteriorate the spat-catching qualities of the cultch. 



The floating laboratory used in this work is illustrated and described. Ex- 

 periments made in floating oysters are noted on page 762. 



Concentrated feeding stuffs, C. S. Cathcart et al. (Nciv Jersey Stas. Bill. 

 243, pp. 3-62). — This contains the results of feeding stufl's inspection in accord- 

 ance with the state law and other data. Analyses ai'e reported of cotton- 

 seed meal, cotton-seed feed, linseed meal, ground flaxseed, flaxseed screenings, 

 gluten feed, hominy meal, distillers' dried grains, meat meal, beef scraps, blood 

 meal, malt sprouts, rj-e bran, rye middlings, ground rye, ground oats, crushed 

 oats, oat hulls, brewers' dried grains, molasses feed, ground wheat, shredded 

 wheat, wheat bran, wheat middlings, barley blowings, alfalfa meal, dried beet 

 pulp, red dog flour, puffed rice screenings, corn meal, corn-and-cob meal, cob 

 meal, buckwheat middlings, buckwheat bran, buckwheat offal, and proprietary 

 mixed feeds. 



