690 EXPERIMENT STATION RECORD. 



man. sugar and molasses for different kinds of farm animals, and related topics. 

 Sugar beets and other materials which are sources of sugar are spoken of, and investi- 

 gations are summarized. The feeding experiments which have been reported by 

 numerous investigators are also summarized and discussed, the article as a whole 

 constituting an exhaustive digest and critical discussion of the subject of sugar in its 

 relation to the diet and to the feeding of farm animals. Some investigations carried 

 on by the authors are also included. 



The effect of sugar and molasses on the time food is retained in the intestinal tract 

 was studied with horses. Coloring matter was given with the ration and the feces 

 were identified in much the same manner as when colored with lampblack in experi- 

 ments with man. Feces from a normal ration were observed 1.'7 hours after it was 

 taken; from a ration with sugar. L'7 to l'S hours, and from a ration with an equivalent 

 amount of molasses. 16 hours. In other words, the molasses hastened the passage 

 of the food through the digestive tract. 



On the basis of personal observation and a summary of available data, the authors 

 speak of the successful use of molasses and sugar in the ration of the horses of one of 

 the large Paris cab companies. Molasses i^ regarded as a very valuable feed. Other 

 data regarding its satisfactory use in horse feeding are summarized, including data 

 obtained with race hors - 



The effect of molasses on the production of milk and butter is one of the subjects 

 considered, and a large amount i if experimenting on tins topic has been collected. The 

 authors* general conclusion is favorable to the use of sugar and molasses a- foods and 

 feeding stuffs. 



Concerning the formation of sugar from leucin, J. T. Halsey [Amer. J 

 Physiol., 10 [1904K No. 5, i . — Although the experiments reported, in 



the author's opinion, do not warrant final conclusions, he believes that they indicate 

 that pure leucin fed to dogs which had been given phlorhizin is not changed into 

 sugar. "There still remains the possibility that the leucin-complex, as it exists in 

 proteid, may lie concerned in the formation of sugar, or that when leucin is fed with 

 the other end products of digestion ... it. together with some other substance or 

 substances, plays a role in the synthesis of sugar."' 



Experiments on the active substances of organs and tissues. A. PrGLiESE 

 J /•. Physiol, et Path. Grn.. 6 (1904 ■ A"o. 2, p\ . dgms. 3). — Experiments 



with the saline extracts of organs and tissues are recorded, the method of isolating 

 the active substances being described as well as the chemical and physiological 

 character of the bodies thus extracted. According to the author the anticoagulating 

 action of the extracts of animal tissues, prepared by the method which he described, 

 is due essentially to a substance which is precipitated when the solution is made 

 alkaline. 



The urine and the metabolism of herbivora, E. Sai.kow->ki (Ztschr. Physiol. 

 Chem., 42 (1904), No. •■'■ PP- 213-250). — The principal questions studied were the 

 occurrence of allantoin and the estimation of indican. 



Chemical composition of Jerusalem artichokes, P. Behbknd i Ztschr. Spiritm- 

 ind.,1904, June; B . M -. Off. Renseignemenls Agr., S (1904), No.8,pp. 922-924).— 

 The uses of Jerusalem artichoke tubers for the production of alcohol and for feeding 

 farm animals are spoken of. 



Job's tears To ir. Jamaica Ag . s No. 10, p. 4 r >4) ■ — An analysis of 



Job's tears is quoted and the nutritive value of tins grain discussed. 



A plan for the improvement of American breeding stock. G. M. Rommel 



U. S. Dept. -1 .. Bureau of Animal Industry Rpt. 1903, pp. 316-825; Ore. 62, pp. 



16- . ' . — The importance of improving breeding stock and the need of systematic 



investigations along this line by the Department of Agriculture are spoken of. Such 



work would necessarily include, as is pointed out. attempts to secure a more 



econom'cal carcass, more efficient work, greater speed, beauty, and general useful- 



