272 EXPERIMENT STATION EECORD. 



Report upon clothing- and equipment, A. Keogh et al. (In Fourth Report 

 of Committee on Physiological Effects of Food, Ti-aining, and Clothing on the 

 Soldier. London: Gt. Brit. War Off., 1D08, pp. 3-10; Jour. Roy. Army Med. 

 Corps, IS (1909), No. 5, pp. 592-603) .—In tliis article the results of a number of 

 tests are reported of the effects of the new and the old army equipment. Loss 

 of moisture, increase in weiglit of the clothing, body temperature, pulse rate, 

 and similar factors were studied with men on the march. The investigation 

 as a whole has to* do with the effects of clothing and other equipment upon 

 these factors. 



Second report (on the physiological effects of marching) of committee on 

 physiological effects of food, training, and clothing on the soldier, A. Keogh 

 ET AL. {London: Gt. Brit. War Off., 1908. pp. 2i).— The effect of clothing of 

 different kinds, external temperature, and other factors were studied with 

 reference to muscular work, i. e. marcliing. 



Interim report (on the physical training of recruits) of committee on 

 physiological effects of food, training', and clothing on the soldier, A. Keogh 

 ET AL. {London: Gt. Brit. War Off., 1908, pp. 11). — The old and new methods of 

 army training are discussed with reference to physical efiicieucy and related 

 questions. 



ANIMAL PRODUCTION. 



Studies with Sudan III in metabolism and inh'^ritance, O. Riddle {Jour. 

 Expt. Zoo/., 8 {1910), No. 2, pp. 163-1 8'i). — The author has here summarized 

 previous results obtained in feeding Sudau III and reported further experi- 

 ments. 



Laying hens were fed Sudan III in gelatin capsules, dissolved in egg yolk, 

 butter, or animal fat, and by enclosing small lumps of the stain in pieces of 

 bread. The results were very similar in all cases. The stain was introduced 

 into the bodies of chicks and rabbits by feeding and by injection of its solution 

 in a mixture of oleic acid and alcohol. A widely variable quantity of the 

 solution was injected into the peritoneal cavities of these animals; also into 

 brachial veins of the chick, and ear veins of the rabbit. In feeding turtles the 

 stain was made into capsules with butter and placed in the stomach by means 

 of forceps. 



With the fowls and rabbits the stain was deposited in the growing ova. 

 Fowls heavily fed on Sudan III, for even a day or two, usually showed a red- 

 dish color in all their adipose tissues, but most prominently in subcutaneous 

 and peritoneal fat. When the stain was fed to newly hatched chicks the 

 feathers took up the stain and became distinctly red in color. Only traces of 

 the stain were found in the somatic tissues of turtles. Rabbits ingested Sudan 

 III more slowly than fowls, but upon continuous feeding red-colored fat became 

 visible in all parts of their bodies. "While in the body, Sudan III clings at 

 all times to the fats or their constituent fatty acids, and so goes quite me- 

 chanically wherever these particles go; it is indeed, attached to them." 



"The stained fat may appear in the mesenteric lymphatics as soon as 70 

 minutes after feeding. Perceptil)le amounts may be deposited on the periphery 

 of growing ova one or two hours later. . . . Fat stained with Sudan is ap- 

 parently less available to the organism than is unstained fat. . . . 



"The significance in inheritance of our experience with Sudan lies: (1) In 

 the fact that here we get — through relatively accurate knowledge of the 

 properties and physiological behavior of this anilin dye — a clear picture of 

 how particles of the food or soma become a part of the germ or new generation ; 

 (2) in the emphasis which it lays upon the fact that the normal constituents 

 of the egg have a comparable history; (3) in the seemingly perfect parallel 



