770 EXPERIMENT STATION RECOED. 



Eggs and caviar were shown to be piirin-free while vegetables in general con- 

 tained small quantities of such bases. Certain sorts show considerable quanti- 

 ties of purin, among which may be mentioned legumes, spinach, kohl-rabi, and 

 some of the edible fungi. Fruits and nuts are purin-free, according to the 

 author, as are also grains and breads with the exception of pumpernickel. 



The influence of fish, diet upon phosphorus, calcium, and mag'nesiuin 

 metabolism, B. Slowzow (YerhatuU. Gesell. Russ. Arzte St. Petersb., 16 (1909), 

 p. 220; (lbs. in Zcnfhl. Biochem. u. Biophys., 10 (1910), No. 8. pp. 37.5, 376).— Ex- 

 periments with 6 persons showed that the substitiition of fish for meat in the 

 diet had practically no effect upon the resorption of phosphorus. On the other 

 hand, the resorption of calcium oxid was diminished 5 per cent and that of mag- 

 nesium oxid increased 8 per cent. 



Calcium metabolism, with special reference to exophthalmic goitre, Caro- 

 line B. TowLES (Separate from Amer. Jour. Med. Set.. 1J,0 (1910). pp. 100-113).— 

 In this study of the metabolism of calcium under pathological conditions, control 

 experiments were made with a woman patient .11 years of age who showed no 

 physical abnormality but was in the hospital on account of hysteria. A simple 

 mixed diet was used to which calcium lactate was added. 



The general conclusion was reached that " calcium given in the form of the 

 lactate enters into the general metabolism or allows the calcium already present 

 in the body to be utilized without loss. Given by the mouth there is no toxic 

 effect from the administration of 20 gm. of calcium lactate over a period of 15 

 days." 



Conclusions which have to do with the pathological condition under considera- 

 tion are also drawn. 



Quantitative estimation of the acid content of saliva and the influence of 

 different foods upon this factor, R. Holz (Quaiiiitatire Bestiiiniiiiiif/rti iiber 

 den SduregehaU dcs Speieheln und den Einftmii verscJiiedener Xalirungsinrittel 

 auf denselben. Inang. Diss., Univ. Wiirzburff. 1910. pp. 28; rev. in Zentbl. 

 Biochem. ii. Biophys., 10 (1910), No. 8, p. 380). — Studies of the reaction of saliva 

 under different conditions, which included the effects of dental caries are re- 

 ported. 



Apparatus for determining' the gaseous exchange in animals, A. Lichats- 

 CHOW and K. Godsikowsky (Verhandl. (IrscU. Rui<s. Arzte St. Petersb., 76 

 (1909). p. 1J,2; abs. in Zentbl. Bioehem. ii. Biophys., 10 (1910), No. 8, p. 369).— 

 This apparatus is a combination of the forms devised by Regnault and Reiset 

 and by Paschutin. Special devices are described for" the collection and estima- 

 tion of carbon dioxid and water. Oxygen is measured directly. 



Handbook of physiological methods. — Blood and its circulation, I, edited 

 by R. TiGERSTEDT (Haiidbueh der physiologischen Methodik. Leipsic, 1910, vol. 2, 

 pt. 1, Bint iind Blntbevegung I. pp. 31,6, pis. 7, figs. 97).— This volume, which is 

 a handbook of laboratory methods and a digest of literature, contains papers 

 by C. Bohr, on the Gases of the Blood ; by L. Michaelis, on Methods of Studying 

 Antibodies for Physiological Purposes; and by K. Biirker. on the Detection or 

 Qualitative and Quantitative Estimation of Hemoglobins. An extended bibliog- 

 raphy, arranged in chronological order, adds to the usefulness of the volume. 



International catalogue of scientiflc literature. Q— Physiology (Internal. 

 Cat. Set. Lit., 7 (1910), pp. VIII +1221). —This volume, which is a part of the 

 seventh annual issue (E. S. R., 20, p. 1168), contains material received between 

 August, 1907, and July, 190S. on physiology, including experimental psychology, 

 pharmacology, and experimental pathology. 



