ANIMAL PRODUCTION. 793 



"Creatinin is probably a better index of methyl metabolism than of the lecithin 

 and kephalin metabolized, although under ordinary conditions the two seem closely 

 related. 



"Further experiments will have to determine if physiological activity is capable 

 of influencing this metabolism to a greater extent than the presence of an excess of 

 methyl groups in the form of Lecithin and kephalin. 



•■It" creatinin bears the relation to methyl metabolism suggested in the above 

 paper, it should be possible to demonstrate the presence of creatin m every tissue 

 having such a metabolism. The presence of creatin in striated muscle is a well- 

 known fact. [ have also found it in the heart muscle and in the testicle, and am 

 continuing the investigation of other tissues." 



The peptic cleavage products of the wheat proteid artolin, II. II w\mii 

 (Arch. Expt. Path. u. PharmakoL, 52 < 1904), />■ ?89; abs. in Biochem. Centbl.,8 

 No. 19-.'". pp. 599, 600). — Gentle digestion gave 2 artroses and on further action of 

 the ferment the artroses yielded parartn.se and metartrose. By still furtheraction of 

 the ferment the metartrose was unchanged while the parartrose yielded heteroar- 

 trose, protoartrose, and deuteroartrose, as well as artolin antipeptone, a body free 

 from sulphur. 



Experiments on carbon-dioxid production when lying down and standing 

 up, K. E. Widlund {Skand. Arch. Physiol., 17 (1905), No. 8 5, pp. 290-293).— The 

 experiments reported led to the conclusion that when standing with the muscles 

 relaxed there is no increase in carbon-dioxid production, and hence the amount of 

 muscular effort put forth is very small. When, however, the subject stands with 

 tense muscles there is a relatively large increase in carbon-dioxid production, indi- 

 cating that thus maintaining the position involves considerable muscular work. 



The constant presence, the quantity, and origin of uric acid in the feces 

 of man in health, F. Galdi i Policlin., Sez. Med., 12, No. 8-4; abs. in Zentbl. Stoff- 

 wechsel u. Verdau. Kranh., 6 (1905), No. 19, p. 445). — According to the author, uric 

 aeid is a constant constituent of the feces of man in health, the amount being inde- 

 pendent of the quantity and weight of the feces. Part of this uric acid comes from 

 the nuclei of lymph cells, part from the blood and from cell nuclei taken in with the 

 food, and a part from the intestinal secretions. 



ANIMAL PRODUCTION. 



Dried beets as a sugar-yielding feeding stuff, A. Muxtz and A. C. GlRARD 

 [Ann. Sfci. Agron., .'. ser., 10 {1905), I, Nob. 1, pp. 154-160; 2, pp. 161-190).— Data 

 on sugar and sugar-yielding materials with special reference to sugar beets and sugar- 

 beet products and on apparatus ami methods for drying sugar beets are summarized, 

 and studies are reported on the composition of dried beets and their value as a feed- 

 ing stuff for horses. 



When used as a substitute for mixed grain in amounts up to 3.6 kg. per head per 

 day satisfactory results were obtained as shown by a comparison with the gains made 

 by horses fed a standard ration of mixed grain and hay. In the authors' opinion, 

 the sugar-beet industry may be profitably extended by the utilization of this crop as 

 a feeding stuff. 



Feeding stuffs, F. T. Holbrook and E. J. Russell (Jour. Southeast. Agr. Col. 

 Wye, 1905, No. 14,pp> 169, 170) . — Miscellaneous feeding stuffs, including oil cakes, 

 dried grains, oat offal, boiled cabbage stalks, and molascuit were analyzed. 



The percentage composition of boiled cabbage stalks was water 84.4, protein 4.1, 

 crude fiber 2.7, and sand 0.7 per cent. "These had been prepared on the erroneous 

 Idea that boiling an indigestible body will make it digestible. Boiling may soften 

 the food and reduce the work of the teeth, but it doe- not enable the digestive fluids 

 to act more vigorously on the boiled than on the unboiled substances." 



