568 EXPERIMENT STATION" RECOED. 



" These children should be given a highly nutritious diet ; that is, foods that 

 contain a large amount of proteid material." 



The dietary which he states he found to be most valuable consisted of " milk 

 (a quart a day), coco, eggs, red meat (once a day), fowl, fish, bread and butter, 

 and cereals, such as oatmeal. . . . Farina, hominy, corn meal, rice, pure olive 

 oil, and cream should also be given if possible, with vegetables, such as spinach, 

 stewed tomatoes, stewed corn, cauliflower, baked and creamed potatoes, purees 

 of beans or peas, and baked beans, and fresh fruit, such as oranges, pears, 

 apples, raw and baked and in the form of apple sauce, and stewed prunes." 



The fluids of the body, E. H. Starling (London, 1909, pp. VIII+1S6, figs. 

 IS). — In this volume the author has gathered together a number of lectures 

 delivered at different times. The subjects taken up include the physical prop- 

 erties of protoplasm, the osmotic relationships of cells, the intake of fluid, the 

 exchange of fluids in the body — the production of lymph, the absorption of the 

 interstitial fluids, the output of fluid, and the fluid balance of the body. 



Can nitrogen equilibrium be attained with either zein or gliadin as the 

 sole proteid in the food? V. Henriques (Ztschr. Physiol. Chem., 60 {1909), 

 No. 2, pp. 105-118). — With zein it was not possible to attain nitrogen equilibrium 

 though the loss was less than with nitrogen-free food. With gliadin, nitrogen 

 equilibrium was attained and gains were made provided the amount supplied 

 was sufficiently large. The exi^eriments were made with rats. 



Experiments to refute the theory that the small intestine aids in the 

 formation of glycogen from dextrose, K. Grube {Arch. Physiol. [Pfliiger], 

 127 {1909), No. 8-10, pp. 529-532 ) .—From his experimental data the author 

 concludes that the liver builds glycogen directly from dextrose. 



The metabolism of man during the work of typewriting, T. M. Carpenter 

 and F. G. Benedict {Jour. Biol. Chem., 6 {1909), No. 3, pp. 271-288).— Bj 

 means of a respiration calorimeter the carbon dioxid and water output, the 

 oxygen absorption, and the heat production were studied both while the sub- 

 ject was engaged in typewriting and while at rest. 



Under the experimental conditions, " it seems reasonable to assume that the 

 work of writing some 1,500 to 1,600 words per hour on the typewriter results 

 in an increase over the resting metabolism of some 10 to 14 gm. of carbon 

 dioxid, 10 to 13 gm. of oxygen, and 20 to 30 calories of heat per hour. Of 

 these factors of metabolism, it is highly probable that the truest factor is 

 presented by the total energy exchange as directly measured, and hence taking 

 into consideration all the data furnished by these two experiments, we can 

 tentatively say that the writing of 1,600 words per hour on the typewriter 

 results in a heat transformation over and above the resting metabolism of not 

 far from 25 calories. At present too little is known regarding the energy 

 transformation of various everyday activities to make any striking comparison, 

 but [by other investigation] ... it has been computed that there is an hourly 

 energy expenditure of about 160 calories over and above the resting maintenance 

 requirement by a man of 70 kg. walking along a level road at a rate of 2.7 miles 

 l>er hour. It is seen, therefore, that the work of typewriting calls for very 

 much less transformation of energy than does that of ordinary walking." 



ANIMAL PRODUCTION. 



The significance of animal industry in farm management, H. Werner 

 {Landw. Jahrb., 38 {1909), Erganzungsb. 5, pp. 79-99).— A statistical study of 

 the importance of animal production in Germany. There are some comments 

 on modern methods of feeding, and the significance of different methods of 

 farm management is discussed. 



