780 EXPERIMENT STATION RECORD. [Vol. 43 



[The churning and whipping of cream, and fillers for ice cream], E. G. 



WooDWAKi) (Washington Sta. Bid. 155 {1920), pp. 20, 21). — Brief progress reports 

 are presented showing (1) that pasteurization may prevent tlie frothing of 

 cream and tlie resulting difficulty in churning; (2) that cream containing 30 

 per cent fat may be whipped more readily than cream either richer or poorer 

 in fat; (3) that the addition of sugar or condensed milk to cream increases the 

 whipping capacity; Jind (4) that gelatin is a more desirable filler for ice cream 

 llian commercial ice cream powder, gum tragacanth, or cornstarch. 



VETERINARY MEDICINE. 



Proceedings of the thirty-seventh annual convention of the Pennsylvania 

 State Veterinary Medical Association (Penn. State Vet. Med. Assoc. Proc, 

 37 {1920), pp. 10 i). — Pnpers here presented are as follows: Some Observa- 

 tions Made in General Practice, H. E. Bender (pp. 7-13) ; Ruminatorics in 

 Impaction and Atony of the Rumen, by L. A. Klein (pp. 13-23) ; Federal Meat 

 Inspection: How Obtained and How Conducted, by C. S. Rocliwell (pp. 23-29) ; 

 Scope and Policy of the [Pennsylvania] Bureau of Animal Industry, by T. E. 

 Munce (pp. 35-44) ; Sterility and Abortion Worlc, by C. Way (pp. 50-62) ; Suc- 

 cess of the Present Methods of Treatment for Abortion and Sterility, by S. E. 

 Young (pp. 62-65) ; Tuberculosis Control in Pennsylvania, by S. E. Bruner (pp. 

 65-71) ; Differential Diagnosis of Hog Cholera, l)y E. A. Cahill (pp. 71-70) ; 

 Hog Cholera, With Special Reference to Differential Diagnosis, l\v A. Eiohhorn 

 (pp. 77-84) ; and Hog Cholera Control, by R. M. Staley (pp. 84-89). 



Eighth annual report of the commissioner of animal industry for the 

 year ending November 30, 1919, L. H. Howard {Ann. Rpt. Commr. Anhn. 

 Indus. [yl/os«.], 8 {1919), pp. 57, figs. //). — This report deals in particular with 

 the occuri-ence of infectious diseases of live stock and control work therev/ith. 



Report of the chief veterinary surgeon for the year 1919, J. M. Sinclatb 

 {South. Rhodesia, Chief Vet. Surg. Rpt. 1919, pp. 8). — This deals with the occur- 

 rence of and control worlv witli Ihe more important infectious diseases of live 

 stock in Southern Rhodesia during the year. 



Report of the veterinary bacteriologist [for the year 1919], L. E. W. 

 Bevan {South. Rhodesia, Chief Vet. Surg. Rpt. 1919, pp. 9-17). — A brief report 

 of the more important work of the year. 



Anaphylaxis and allied phenomena in relation to disease, T. H. Boughton 

 {Jour. Lab. and Clin. Med., 5 {1920), No. 9, pp. 597-608) .—This is a review of 

 the literature on tlie subject under the lieadings of theories, passive anaphylaxis, 

 antianaphylaxis, bacterial anaphylaxis, related phenomena, and clinical consid- 

 erations. A list of lis literature references is appended. 



Precise titration of complement, S. C. Bkooks {Jour. Med. Research, f^l 

 {1920), No. Jf, pp. 399-409, figs. 2). — The author describes a method by which it 

 is said to be possible to titrate complement with a probable error of about 1 per 

 cent in the relative efficiency of two or more samples. The most important 

 modifications of the usual technique are as follows: 



(1) Substitution of a physiologically balanced solution especially adapted to 

 the red blood cells employed in place of the noi'mal salt solution for use in 

 studying the hemolysis of sheep's erythrocytes. The solution used consisted of 

 sodium chlorid 80 gm., potassium chlorid 2 gm., calcium chlorid (6 H2O) 2 gm., 

 sodium bicarbonate (anhydrous) 10 gm., sodium phosphate, monobasic (HzO) 

 0.5 gm., and distilled w^ater 10 liters. This solution is of such a composition 

 that the various cations are present in the same proportions and total concentra- 

 tions as in sheep serum, and the proportion of bicarbonate to phosphate is such 

 as to maintain in the solution an H-ion concentration (pH=7.6) like that of 



