CONTENTS. 



G. H. A. CLOWES : On reversible emulsions and the role played by electrolytes in 



determining the equilibrium of aqueous oil systems. I (818). 

 G. H. A. CLOWES : On analogous effects exerted by antagonistic calcium and citrale 



ions in physical and biological systems. 2 (819). 

 G. H. A. Clowes and F. West : On the role played by antagonistic ions in the 



process of blood coagulation. 3 (820). 

 G. II. A. Clowes : On analogous effects exerted by anesthetics in physical and 



biological systems. 4 (821). 

 C J. Wiggeks: The pressure changes in the right ventricle studied by optically 



recording manometers. 5 (822). 

 I. J. KLIGLER {by invitation) : A comparison of the Ehrlich and Salkowski tests for 



indol production by bacteria. 6 (823). 

 T. B. Osborne and L. B. Mendel: The influence of butter-fat on growth. 7 (824). 

 M. S. Fine and V. C Myers : The presence of creatinine in muscle. 8 (825). 

 J. B. Atkinson and C. B. Kitzpatrick : On re-injection with B. tuberculosis or its 



products and with sera, q (826). 

 William Salant and C. T. Harris: Some observations on the action of ergot. 



10 ^827). 



D. Wright Wilson and John F. Lyman {by invitation) : Creatine in the muscle 



tissue of the lamprey. 11 (828). 

 F. L. Gates and S. J. Meltzer : The combined effect of magnesium sulphate and 



sodium oxalate upon rabbits. 12 (829). 

 D. D. Van Slykf. and G. M. Meyer : The effect of protein starvation and feeding on 



the amino-acid content of the tissues. 13 (830). 

 Harvey CusniNcand EmilGoetsch : Hibernation and the pituitary body. 14 (831). 

 Emil Goetsch and Harvey Cushing : The pars anterior and its relation to the repro- 

 ductive glands. 15 (832V 

 Raymond Pearl : On the correlation between the number of mammae of the dam and 



size of litter in mammals. I. Interracial correlation. 16 (833). 

 Raymond Pearl : On the correlation between the number of mammae of the dam and 



size of litter in mammals. II. Intraracial correlation. 17 (834). 

 Isaac Ott and J. C. Scott : The effect of animal extracts on the volume of the 



spleen. 18 (835). 



T. Diller and J. Rosenbloom : Metabolism studies in a case of myasthenia gravis. 19 

 (836). 



M. Dresbach and S. A. Munford: A case of interpolated extra systoles, illustrated 



by electro-cardiograms. 20 (837). 

 A. E. C. Lathrop and Leo Loeb : The incidence of cancer in various strains of 



mice. 21 (838). 



A. E. C. Lathrop and Leo Loeb : The influence of pregnancies on the incidence of 



cancer in mice. 22 (839). 

 Edith J. Claypole {by invitation) : Skin reactions in Streptothrix infections. 23 



(840). 



Theo. C. Burnett {by invitation) : Further note on the influence of cholesterol on 

 the growth of tumors. 24 (841). 



William Ophuls and George W. McCoy : Nephritis in ground squirrels (Citellus 

 beechyi). 35 (842). 



William Ophuls : Experimental embolism of the arterioles in guinea pigs with hard- 

 ened erythrocytes of Triton (Diemy aylus) torosus and of Chrondrotus tenebrosus. 



26 (843). 



F. P. Gay and Edith J. Claypole : A further note on the specific hyperleucocytosis 

 in immunized animals. 27 (844). 



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