70 



EXPERIMENT STATION RECORD. 



Dietary computer, Ellen H. Richards {Neiv York: John Wiley & Sons; London: 

 Chapman & Hall, 1902, pp. 54, chart). — This volume contains specially prepared tables 

 showing the C(MBposition of a number of common food materials and dishes made 

 from them. The material is arranged in such a way that the author believes the food 

 value of a given menu may be readily computed and compared with the commonly 

 accepted dietary standards. A chart accompanying the volume consists of a card- 

 board frame with movable slips upon which the composition of food materials may 

 be written in such a way that the total food value of the day's ration can be con- 

 veniently ascertained. 



Therapeutic value of vegetable diet, L. Kuttner {Berlin. Klinik., 1902, Jan.; 

 ahs. in Britiiih Med. Jour., 1902, Xo. 2159, Epit., p. 7£').— The author concludes that 

 a mixed diet is most suitable for man in health. The conditions requiring a partial 

 or complete vegetarian diet are discussed. 



The valuation of a vegetarian diet, Albu {Berlin. Klin. WeluiscJir., 1901, No. 

 24, p. 647; <d)s. in llijij. BninUchau, 12 {1902), No. 5, pp. 237, 238). 



Metabolism, on a vegetarian diet, Albu {Ztschr. Klin. Med. IBerlin], 43 {1901), 

 p. 1; ahs. in Hyg. Rundschau, 12 {1902), No. 5, pp. 237, 23S).—T\\e author studied the 

 diet of a woman who had been a vegetarian for 6 years. The daily diet, which con- 

 sisted of graham bread, apples, plums, grapes, nuts, dates, and lettuce, furnished 

 34.14 gm. protein and 36 gm. fat. On this diet there was an average daily gain of 

 0. 37 gm. nitrogen. On an average 67 per cent protein and 65 per cent fat was digested. 

 The diet is discussed in relation to a normal diet. 



Precautions to be taken by consumers of vegetables, Oeserole ( Queensland 

 Agr. Jour., 10 {1902), No. 4, p. 301) . — In an article quoted from Agriculture Moderne, 

 the author recommends that vegetables should be well washed and inmiersed for \ 

 hour in a 3 per cent solution of tartaric acid to rid them of injurious micro-organisms 

 and i^arasites and their eggs if such are pre.sent. He calls attention especially to the 

 fact that injurious parasites may be transmitted to men by raw vegetables which 

 have been manured with contaminated material unless they are thoroughly cleaned. 



The energy value of the diet of man, M. Rubner {Ztschr. Biol., 42 {1901), pp. 

 261-308). — Exjieriments are reported in which subjects (men and boys) were fed 

 milk, potatoes, rye bread, coarse bread, meat, a mixed diet containing a little fat, 

 and a mixed diet containing a large amount of fat. The fuel value of food, urine, 

 and feces was determined. In a number of cases the fuel value of the food as 

 determined was compared with the value calculated ))y the aid of the factors ordinarily 

 used. The following table shows the physiological nutritive effect of the foods and 

 rations studied — that is, the jiercentage of energy available: 



Physiological nutritive effect of different foods. 



Food material. 



Milk 



Mixed diet, odiitaiiiiiiKiiii abmidanceof fat; boy E 

 Mixed diet, coiitiiiniiiKii'i alimiclaiiceof fat; boy O 



Mixed diet, (■(uitauiiiiK little fat; man F 



Mixed diet, (■untaminK little fat; man T 



:Mixed diet, cDiitainiiig an abundance of .'at; man F 

 Mixeil diet, emitaining an abundance of fat; man T 



Rye bread 



Coarse bread 



Potatoes 



Meat 



Physi- 

 ological 

 nutritive 



value. 



Per cent. 

 89.80 

 91.21 

 88.79 

 87.60 

 91.10 

 90. .50 

 91.10 

 82. 10 

 73.50 

 92. 10 

 76.80 



Tlie author notes that determinations like tho.se reported furnish a means of judging 

 of the energy value of foods, but that special studies of a different nature are needed 

 to determine their protein value. 



