378 EXPERIMENT STATION RECORD. 



Beet pulp, A. E. Shuttleworth (Ontario Agr. Col. and Expt. Farm Rpt. 1900, pp. 

 29, 30) . — The author quotes the composition of the beet pulp and discusses its feed- 

 ing value. 



Composition of sunflower seeds, F. W. Morse {New Hampshire Sta. Bui. 79, pp. 

 T, S). — The specific gravitj' of sunflower seeds, relative amounts of meats and hulls, 

 as well as the composition of both black and striped whole seeds, meats, and hulls 

 are reported. 



Composition of some poultry foods, F. W. Morse {New Hampshire Sta. Bui. 79, 

 pp. 8, 9). — Analyses of meat and bone meal, beef scraps, ground dried fish, broken 

 crackers, middlings, and several commercial poultry feeds are reported. 



The composition of purslane (Portulaca oleracea) , J. B. Lindsey {JSkmsachusetts 

 Sfa. Bpt. WOO, pp. .52, 53) . — The composition of purslane is reported and the uses of 

 the plant briefly discussed. 



Grape prunings as a feeding stuff for farm animals, F. Guerrieri {Staz. Sper. 

 Agr. Ital., 34 {1901), No. 4, PP- 338-346).- — The author reports proximate and ash 

 analyses of grape prunings, hay, and straw. 



Breadnut {Bui. Bot. Dept. Jamaica, n. ser., 8 {1901), No. 3, p. 42). — It is stated 

 that the fruit or "nut" of the breadnut (Brosimnw rti/cff.s<ram) is largely used for 

 feeding cattle, as are also the leaves, which constitute a valuable fodder for horses 

 and cattle. The tree also yields excellent timber. 



The respiratory quotient and overfeeding of fat, M. Bleibtreu {Arch. 

 Physiol. [Pflilger], 85 {1901), No. 7-8, pp. 345-400, figs. 2, pi. i).— With a view to 

 obtaining data on the different sorts of animal fats, experiments were made with geese. 

 They were overfed with ground rye mush, to which, in some cases, sugar was added. 

 A respiration apparatus, which is described, was used to determine the resi>iratory 

 quotient in connection with these investigations. The author sums up the results as 

 follows: When full-grown lean geese are fed much more than they require of a 

 ration rich in carbohydrates, the respiratory quotient becomes much greater than 

 normal. The high value is caused by an increase in the amount of carbon dioxid 

 excreted and not by a decrease in the amount of oxygen consumed. A respiratory 

 quotient exceeding the unit value, namely, that corresponding to the combus- 

 tion of body substance, shows that the transformation of carbohydrates into fat 

 in the animal body is accompanied by a cleavage of carbon dioxid. Even when the 

 process of digestion is most active the geese overfed with rye did not excrete any 

 inflammable gases so far as could be determined. The milk-white color of blood 

 serum which has often been observed in overfed geese is due to an emulsion of fat in 

 which the drops are very minute. This condition disappears if the animal fasts for 

 a few days, and does not occur if the animal is fed fat-free food rich in carbohydrates. 

 It is probable, therefore, that the fat in the serum is derived from fat in the food 

 consumed and not from newly formed body fat. 



Further experiments on the resorption of artificially colored fat, E. PFLiioER 

 {Arch. Physiol. [Pfiilger'], 85 {1901), No. 1-3, pp. i-6^). —Additional experiments 

 are reported and the recent work on the subject of the resorption of colored fat is 

 critically reviewed. 



Remarks on Dr. L. Holfbauer's article concerning the resorption of artifi- 

 cially colored fat, S. Exner {Arch. Physiol. [Pfliiger], 84 (1901), No. 11-12, pp. 

 628-635, fig. 1). — A controversial article. 



The resorption of fat and soap in the large and the small intestine, H. J. 

 Hamburger {Proc. Sec. Sci. Koninkl. Akad. Wetensch. Amsterdam, 1900, II, pp. 

 287-298). — Experiments with a dog are reported. 



A note on the question of the digestibility of cellulose in the intestines, 

 E. MuLLER {Arch. Physiol. [Pfliiger], 83 (1901 ) , No. 10-12, j>p. 619-627). -—Experiments 

 were made with the enzym of the hepato pancreas of a carp and also with a goat 



