1020) AXTMAL PRODUCTTO-N'. 867 



In pipronns the poarl eyo is recossive to red or to grnvpl, and In fowls the 

 daw eye is reoessivo to the type of black due to pigment in the stroma. In 

 the niarinp hlark-eycnl Black Orpington SX daw-eyed Malay 9, the F, all 

 showed hiack pi?:nient in the outer Iris when young, hut as the cockerels 

 matured the iridos became yellow. Similar hut less clear-cut results were 

 secured from the mating of black eyed $ X gravel eyed 9. 



"The change to the yellow color in the developing cockerels occurs in patches 

 on the surface of the iris, and seems to be due to the removal of the cells con- 

 taining brown or black pigment and of the substitution in their place of 

 cells containing yellow pigment granules, together with (in the case of the half- 

 bred Malay fowl) the deposition of yellow pigment granules in the striated 

 muscle cells of the iris." 



When a gravel-eyed Game Bantam cock was muted to Silky hens the Fi cocks 

 were gravel eyed and the eyes of the Fj hens were mostly black and yellow. 

 In the Fi also the black and yellow eye was associated with female^ and the 

 yellow eye with males. 



It is noted that black granules of the iris are not affected by formalin, 

 whereas the yellow granules disintegrate after a few weeks' immersion. 



Substitutes for the words homozygous and heterozygous, F. J. Kelt.ey 

 (Scipvce, n. arr.. 50 {1919), No. .1298, pp. 458-.',60).— The author suggests that 

 in popular discussions the word " constant " be used instead of homozygous and 

 "inconstant" in place of heterozygous. The use of substitutes like "pure," 

 " impure." and " crossbred " is considered misleading. 



Commercial feeding stuffs, quarterly report, October 1 to December 

 31, 1919, E. G. Proulx et al. {Indiana Sta. Bui. 242 {1920), pp. 83). — This 

 bulletin tabulates the proximate composition of 909 samples of feeding stuffs 

 and the ingredients identified. The materials analyzed include feed barley, 

 brewers' dried grains, corn bran, com feed meal, corn germ meal, corn gluten 

 feed, hominy feed, cottonseed meal and feed, linseed meal, linseed meal and 

 screenings oil feed, unhulled peanut oil feed, peanut oil meal, rye middlings, 

 wheat bnin with and without screenings, shorts, middlings with and without 

 screenings, red dog, wheat mixed feed, tankage, meat scrap, and a variety of 

 stock and poultry feeds, calf meals, and condimental foods. 



The compilers note that farmers are finding it increasingly difficult to secure 

 straight by-product feeds owing to the competition of mixed-feed manufacturers. 



Commercial feeding stuffs, quarterly report, January 1 to March 31, 

 1920, E. G. Troulx kt al. {Irifiinnn ^ta. Bill. 2/,3 {1920), pp. (?',).— This bulle- 

 tin includes analyses of 99.5 samples of feeding stuffs, the assortment of mate- 

 rials being the same as in the publication noted above except for the omission 

 of peanut oil meal and the addition of alfalfa meal, cottonseed hulls, dried 

 buttermilk, ground wheat screenings, rice bran, oat shorts, and dried beet pulp. 



Feeding stuffs report, 1919, J. W. Kellogg {Penti. Dept. Agr. Bui. S42 

 {1920). pp. 280). — The moisture, protein, fat, and crude fiber content, and the 

 identifie<l ingredients are reported of samples of cottonseed meal, cottonseed 

 feed, linseed meal, coconut oil meal, distillers' dried grains, yeast dried grains, 

 brewers' dricfl grains, barley feed, corn gluten feed, hominy feed, corn bran, 

 corn feed meal, wheat bran, wheat middlings, red dog, wheat mixed feed, rye 

 middlings, rye red dog, buckwheat middlings, alfalfa meal, dried beet pulp, 

 tankage, meat-and-l)one scrap, bone meal, and the usual assortment of proprie- 

 tary compounded feeds. The retail prices are also tabulated. 



Revised rules and regulations adopted under the provi.sio'ns of the 

 Texas feed law {Tciu.^ SHa. Control Circ. E {1919). pp. S-8).— This is a re- 

 vised edition of Control Circular C (E. S. R., 42, p. 370). 



