• The digestibility of South African feeds I : the digestibility coefficients of some natural grasses 

  Myburgh, S.J. (Susanna Johanna); Du Toit, P.J. (Pretoria : Government Printer, 1937)

  Coefficients of digestibility and nutritive ratios are given for some South African grasses, as well as for lucerne hay.
• Studies in mineral metabolism XXXVIII : calcium and phosphorus in the nutrition of growing pigs 

  Theiler, A.; Du Toit, P.J.; Malan, A.I.; Du Toit, P.J. (Pretoria : Government Printer, 1937)

  Bethke and associates (1933) and Dunlop (1935) conclude that growing pigs require approximately 0 - 6 percent P in their rations and that maximum growth is obtained with a Calcium-phosphorus ratio between 1:1 and 2:1. ...
• Wool studies II : the frequency distribution of Merino wool fibre thickness measurements 

  Malan, A.P.; Du Toit, P.J. (Pretoria : Government Printer, 1937)

  The logarithmic nature of distributions in wool fibre thickness measurements has been suggested by the constancy of the coefficient of variability in previous work. The distribution of a variable, the logarithm of which ...
• Studies upon the photosensitisation of animals in South Africa X : the icterogenic factor in geeldikkop : isolation of active principles from Lippia rehmanni Pears 

  Rimington, Claude; Roets, G.C.S.; Quin, J.I.; Du Toit, P.J. (Pretoria : Government Printer, 1937)

  In the seventh contribution to this series of articles dealing with photosensitisation, the naturally occurring disease of sheep, "Tnbalosis" or "Geel-dikkop" was more particularly considered and it was shown (Rimington ...
• Studies in sex physiology no. 19 : the Influence of age on (a) amount and (b) nature and composition of the allantoic and amniotic fluids of the Merino ewe 

  Malan, A.I.; Curson, H.H.; Malan, A.P.; Du Toit, P.J. (Pretoria : Government Printer, 1937)

  In Study 18 (Malan and Curson, 1936) a few general remarks appeared on the nature of the increase in the amount of allantoic and amniotic fluids in the case of 10 Merino sheep, two having been slaughtered and examined at ...
• Chemical investigation of the plant Acalypha indica : isolation of triacetonamine, a cyanogenetic glucoside and quebrachite 

  Rimington, Claude; Roets, G.C.S.; Du Toit, P.J. (Pretoria : Government Printer, 1937)

  (1) The plant Acaly)pha indica is cyanogenetic containing approximately 210 mgm. HC per 100 gm. dry weight of the dried powdered material. (2) A base is present in extracts of the plant, being derived from some precursor, ...
• Notes upon the isolation of the alkaloidal constituent of the drug "Channa" or "Kougoed" (Mesembryanthemum anatomicum and M. tortuosum) 

  Rimington, Claude; Roets, G.C.S.; Du Toit, P.J. (Pretoria : Government Printer, 1937)

  The "Kougoed" of the Bushmen of Namaqualand is a preparation compounded of the dried, over-ground portions of the plants Mesembryanthemum anatomicum and Mesembryanthemum tortuosum. It is chewed and is said to exert a ...
• Recent investigations into the toxicity known and unknown poisonous plants the Union of South Africa VII 

  Steyn, Douw G.; Du Toit, P.J. (Published by the Government Printer, Pretoria, 1937)
• Experiments with plants alleged to be used as abortifacients and ecbolics by natives 

  Steyn, Douw G.; Du Toit, P.J. (Pretoria : Government Printer, 1937)

  The plants, which are alleged to be used abortifacients and ecbolics by the natives of Uganda, were submitted by the Director of Medical Services, Uganda, for investigation. It is stated that the pregnant women drink ...
• The approximate distribution of the genus Glossina 

  Curson, H.H.; Neitz, W.O.; Du Toit, P.J. (Pretoria : Government Printer, 1937)

  'l'he compilation of the map accompanying this paper arose from a desire to demonstrate at a glance to veterinary students the approximate distribution of the genus Glossina, a knowledge of which is especially useful in ...
• Whipworms from South African ruminants 

  Ortlepp, R.J.; Du Toit, P.J. (Pretoria : Government Printer, 1937)

  The occurrence and morphology of Trichuris globulosa are discussed and three new species are described, namely T. barbertonensis from cattle, T. antidorchi from springbok and blesbok and T. parvispiculum from goats.
• A hitherto unrecorded Filaria, Suifilaria suis, N.G. n. sp., from the domestic pig in South Africa 

  Ortlepp, R.J.; Du Toit, P.J. (Pretoria : Government Printer, 1937)

  About a year ago portions of preserved pig muscle were submitted by the Port Elizabeth abattoir authorities to this Institute in order to determine whether some whitish oval cysts attached to the fasciae of the muscles had ...
• Some undescribed species of the nematode genus Physaloptera Rud., together with a key to the sufficiently known forms 

  Ortlepp, R.J. (Pretoria : Government Printer, 1937)

  'l'he species discussed in the ensuing pages, except P. dispar von Linst., 1904, comprise some of the material which has from time to time been sent to this institute for determination. As this genus comprises a considerable ...
• The effects of different carbon dioxide concentrations on the growth of virulent anthrax strains : pathogenicity and immunity tests on guinea pigs and sheep with anthrax variants derived from virulent strains 

  Sterne, Max; Du Toit, P.J. (Pretoria : Government Printer, 1937)

  (1) Virulent anthrax strains grew mucoid and produced avirulent rough dissociants on serum agar, in a number of different carbon dioxide concentrations. (2) A relatively small close of avirulent spores immunized sheep ...
• The occurrence of Piroplasma pitheci in a vervet monkey (Cercopithecus aethiops cloetei Roberts) in South Africa 

  Neitz, W.O.; Du Toit, P.J. (Pretoria : Government Printer, 1937)

  The occurrence of P. pitheci was recorded by Ross (1905) in several monkeys belonging to the genus Cercopithecus. The affected animals did not show any clinical symptoms apart from febrile reactions. Three years later the ...
• Eperythrozoonosis in sheep 

  Neitz, W.O.; Du Toit, P.J. (Pretoria : Government Printer, 1937)
• Veterinary biochemical studies I. A rapid method for the determination of copper in biological material 

  Le Roux van Niekerk, P.; Du Toit, P.J. (Published by the Government Printer, Pretoria, 1937)

  Of the micro-methods which have been proposed for the determination of copper, the method of Biazzo (1926) as modified by Elvehjem and Lindow (1929) has been found to be the most practicable. Until recently McFarlane, ...
• Osteofibrosis in equines 

  Groenewald, J.W.; Du Toit, P.J. (Pretoria : Government Printer, 1937)

  Cases of osteofibrosis are not infrequently reported from race-horse stables where the animals are fed on cereal concentrates, and where the hay ration is kept relatively low. Unless legume hay is fed, or a collection is ...
• The toxicity of oil of turpentine for domestic animals 

  Steyn, Douw G. (Pretoria : Government Printer, 1937)

  1. The following mixture appears to constitute no danger to fullgrown horses not suffering from congestion of the kidneys, nephritis or gastro-enteritis : "120 c.c. (=4 oz.) of oil of turpentine, 4 c.c. ( = 1 drachm) of ...
• The distribution and possible translocation of icterogenin in Lippia rehmanni (Pears) 

  Roets, G.C.S.; Du Toit, P.J. (Pretoria : Government Printer, 1937)

  (1) Icterogenin may be present in variable amounts in the leaves and inflorescence of Lippia rehmanni (pears) whereas only traces are to be found in the stem and root stele. (2) There is a possible translocation of the ...

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