868 EXPERIMENT STATION RECORD. L Vol. 41 



nients at the Illinois Experiment Station with vestigiul-wing drosopliilas (pom- 

 ace flies) are i-eported. 



Selection for 34 generations failed to increase the length of the wings. 

 \"estigial-wing flies extracted from a cross with wild long-wing flies bore longer 

 wings and wings of more varied shapes than the stock which had not been 

 crossed. This result is attributed to modifying factors brought in by wild 

 Hies, and not to " contamination." For seven generations certain of the ex- 

 tracted stock were kept in an incubator where the t(>mperature, though vari- 

 able, averaged about 2° C. above the room temperature where the rest of the 

 stock were kept. The incubator flies developed longer wings than the outside 

 flies, and the effect was more marked in the males than in the females. 



Selecting cattle for hornlessness, E. N. Wentworth (Breeder's Oaz., 16 

 (1919), No. 17, pp. 849, 850). — The current view of geneticists as to the inheri- 

 tance of the polled character in cattle is explained. It is pointed out that a 

 long series of top crosses with polled animals does not ensure the " prepotency " 

 of a polled sire. 



Commercial feeding stuffs, quarterly report, Januai-y 1 to March 31, 

 1919, E. G. Proulx kt al, (Indiana Sta. Bui. 230 (1919), pp. 6.9).— This is the 

 first of the new series of quarterly reports of Indiana feeding stuffs, and tabu- 

 lates the proximate composition of 982 samples analyzed during the first 

 three months of 1919. The materials listed include alfalfa meal, buckwheat 

 hulls and middlings, coconut oil meal, corn bran, corn feed meal, yellow corn 

 feed meal, corn germ meal, corn gluten feed, hominy feed, yellow hominy feed, 

 cottonseed cake, cottonseed feed, cottonseed meal. Kapok seed meal, linseed 

 cake, linseed meal, oat middlings, palm kernel oil meal, peanut oil meal, rye 

 middlings, velvet bean feed, wheat bran, wheat middlings, Avheat shorts, red 

 dog, white middlings, miscellaneous (mostly corn and oats) chop feeds, tank- 

 age, meat scrap, and mixed and proprietary stock, poultry, molasses, and 

 condimental feeds and calf meals. 



Inspection of feeding stuffs (Neio York State ,S'?fl. Bui. 4.55 (1918), pp. 15- 

 186). — This is the report on the samples of feeding stuffs collected by the New 

 York State Commissioner of Agriculture during 1918. The protein, fat, and 

 fiber content of each sample is reported, together with the ingredients identi- 

 fied and in the case of animal by-products the phosphoric acid content. The 

 materials analyzed include alfalfa meal, barley feed, barley middlings, barley 

 hulls, brewers' dried grains, buckwheat middlings, coconut oil meal, corn bran, 

 corn germ meal, corn gluten feed, corn meal, corn feed meal, hominy feed, 

 yellow hominy feed, corn-and-cob meal, cottonseed meal, cottonseed feed, dis- 

 tillers' dried gi*ains (corn), malt sprouts, dried yeast grains, dried beet pulp, 

 linseed meal, unscreened flaxseed oil cake, oat hulls, oatmeal by-product, pea- 

 nut oil feed, unhulled peanut oil feed, Spanish chestnuts, velvet bean feed, 

 wheat bran, wheat middlings, red dog, wheat middlings and palm oil, wheat 

 screenings, tankage, meat scrap, meat-and-bone scrap, beef scrap, fish meal, 

 and various proprietary compounded chop, molasses, stock and poultry feeds, 

 and calf meals. 



Poultry foods, J. C. Brunnich (Queensland Affr. Jour., 11 (1919), No. 6, pp. 

 245, 246). — Proximate analyses of market samples of AustraUan poultry feeds 

 are summarized. The materials ai-e meat-and-bone meal, pea meal, corn meal, 

 bran, shorts, linseed meal (Meggit's), key meal, polly meal, and nine commercial 

 mixed feeds. Besides the total ash determinations, the proportions of lime, 

 phosphoric acid, and insoluble ash are tabulated. The market price of each 

 feeding stuff is listed. An estimate of the actual monetary value of the ingre- 

 dients of the mixed feeds indicates that the price asked for these is unduly high. 



