• Subject index 

  Du Toit, P.J. (Pretoria : The Government Printer, 1939)
• Author index 

  Du Toit, P.J. (Pretoria : The Government Printer, 1939)
• Studies of the rickettsias of the Typhus-Rocky-Mountain-Spotted-Fever group in South Africa. IV. Discussion and classification 

  Mason, J.H.; Alexander, R.A.; Du Toit, P.J. (Pretoria : The Government Printer, 1939)

  1.The five strains of rickettsia are discussed and compared according to the criteria suggested by Pinkerton (1936). 2. It· is concluded that they fall into two groups: (a) Typhus group – endemic, murine or rat ...
• Chemical investigations upon Lotononis laxa E. and Z.I. The isolation of pinitol, a fatty ester and benzaldehyde 

  De Waal, H.L.; Du Toit, P.J. (Pretoria : The Government Printer, 1939)

  (1) Preliminary chemical investigations upon Lotononis laxa E and Z, a dangerously toxic cyanogenetic plant to stock and occurring in the Lady Grey district, C.P., resulted in the isolation of a fatty ester, pinitol and ...
• The endogenous nitrogen metabolism of young sheep with reference to the estimation of the maintenance requirement of sheep 

  Smuts, D.B.; Marais, J.S.C.; Du Toit, P.J. (Pretoria : The Government Printer, 1939)

  In a study on the endogenous nitrogen excretion of immature sheep, it was found that young sheep reach their endogenous level on the 6th day, after having been on a standard ration of 14 per cent lucerne protein. The ...
• Change in body-weight and food consumption of rats on repeated feeding of a deficiency diet 

  Kellermann, J.H.; Du Toit, P.J. (Pretoria : The Government Printer, 1939)

  (1) Data are presented on the change in body weight and food intake of young mature rats during the first and second trials on diets deficient in minerals and vitamins ; minerals, vitamins and bulk; and proteins. Data are ...
• A tetrachlorethylene emulsion as an anthelmintic 

  Mönnig, H.O. (Hermann Otto); Ortlepp, R.J.; Du Toit, P.J. (Pretoria : The Government Printer, 1939)

  An emulsion of tetrachlorethylene is described, which is effective against hookworms in sheep (Gaigeria and Bunostomum) and against Haemonchus, Trichostrongylus and Nematodirus. The emulsion does not cause coughing and ...
• The immunization of laboratory animals against anthrax 

  Sterne, Max; Du Toit, P.J. (Pretoria : The Government Printer, 1939)

  Guinea-pigs and rabbits can be immunized against anthrax without difficulty; mice as a rule cannot. The very interesting work of Tomcsik and Bodon (1934) and Tomcsik and Ivánovic’s (1938) on the passive immunization of ...
• The antigenic structure of Salmonellas obtained from domestic animals and birds in South Africa 

  Henning, M.W.; Du Toit, P.J. (Pretoria : The Government Printer, 1939)
• The use of anthrax vaccines prepared from avirulent (uncapsulated) variants of Bacillus anthracis 

  Sterne, Max; Du Toit, P.J. (Pretoria : The Government Printer, 1939)

  A technique has been described (Sterne 1937a, 1937b) for consistently obtaining avirulent, immunogenic variants from virnulent anthrax strains. The results of field and laboratory tests with vaccines prepared from such ...
• Serological variants of Salmonela typhi-murium isolated from South African animals 

  Henning, M.W.; Haig, D.; Du Toit, P.J. (The Government Printer, Pretoria, 1939)

  A number of epizootics in domestic animals caused by Loefflers Bacterium typhi-murium, containing both factors IV and V, have been described by Henning (1939). In the description given here we have confined ourselves mainly ...
• Studies of the Rickettsias of the Typhus-Rocky-Mountain-Spotted-Fever group in South Africa. III. The disease in the experimental animal. Cross-immunity tests 

  Mason, J.H.; Alexander, R.A.; Du Toit, P.J. (The Government Printer, Pretoria, 1939)

  1. The effect of the rickettsias of rat typhus, tick-bite fever, fievre boutonneuse, and of two other tick-bite-fever-like diseases (" Hare " and "Appleton ") on the guinea-pig, rat, mouse, rabbit, dog, sheep, and ox is ...
• Studies of the Rickettsias of the Typhus-Rocky-Mountain-Spotted-Fever Group in South Africa. II. Morphology and cultivation 

  Alexander, R.A.; Mason, J.H.; Du Toit, P.J. (The Government Printer, Pretoria, 1939)

  In the previous article (this journal) details were given of the source and method of isolation of five strains of rickettsia. These strains have been maintained either by serial passage in guinea pigs, or by cultivation ...
• Studies of the Rickettsias of the Typhus-Rocky-Mountain-Spotted-Fever Group in South Africa. I. Isolation of strains 

  Alexander, R.A.; Mason, J.H.; Neitz, W.O.; Du Toit, P.J. (The Government Printer, Pretoria, 1939)

  Research work into heartwater, a disease of sheep, goats and cattle caused by Rickettsia ruminantium (Cowdry 1926) has been hampered to a very great extent by the lack of a susceptible small laboratory animal. Up to the ...
• Prenatal growth in the Merino sheep 

  Cloete, J.H.L.; Du Toit, P.J. (The Government Printer, Pretoria, 1939)

  LITERATURE on prenatal growth in mammals is reviewed. A comprehensive series of measurements was made on the genital tracts of Merino ewes, 11 non-pregnant and 38 at various stages of pregnancy, and also on the foetuses. ...
• Notes on the determination of the fibre fineness of a Merino wool sample 

  Bosman, V.; Van Wyk, C.M.; Du Toit, P.J. (The Government Printer, Pretoria, 1939)

  The technique for determining the fibre fineness of a sample of wool as used in South Africa is outlined. The methods of cutting the fibre bundle into fragments and the mounting of these on a slide are described. The effect ...
• Bovine congenital porphyrinuria (pink tooth) inherited as a recessive character 

  Fourie, P.J.J.; Du Toit, P.J. (Pretoria : The Government Printer, 1939)

  l. In mating a bull (7015) being a carrier of the porphyrin gene (Dr) to ten unrelated heifers, 8 calves were produced. These are all clinically normal. This is regarded as evidence that the inherited character is not ...
• Quantitative studies upon porphyrin excretion in bovine congenital porphyrinuria (pink tooth) No. 2 

  Fourie, P.J.J.; Roets, G.C.S.; Du Toit, P.J. (The Government Printer, Pretoria, 1939)

  In this paper the authors intend to record results concerning the quantitative porphyrin excretion during different times of the year by bovines suffering from congenital porphyrinuria (pink tooth) and at the same time ...
• The biological value of white fishmeal as determined on growing sheep and rats 

  Smuts, D.B.; Marais, J.S.C.; Du Toit, P.J. (Pretoria : The Government Printer, 1939)

  By means of nitrogen metabolism experiments with white fish meal on rats and sheep, it was found that the apparent and true digestibilities of the white fishmeal protein are respectively 79 and 97 percent with rats and 63 ...
• On the feeding of a phosphorus supplement to mother-reared calves, prior to weaning, under open range conditions in Bechuanaland 

  Bisschop, J.H.R.; Malan, A.I.; Steyn, H.P.; Laurence, G.B.; Du Toit, P.J. (The Government Printer, Pretoria, 1939)

  The results are presented of an experiment to ascertain whether a regular supplement of bonemeal given to calves up to weaning age would be beneficial to their growth and development, in comparison with a comparable group ...

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