• Subject index 

  Anonymous; Du Toit, P.J. (Published by The Government Printer, Pretoria, 1941)
• Author index 

  Anonymous; Du Toit, P.J. (Published by The Government Printer, Pretoria, 1941)
• Anatomical studies no. 65 : Two cases of cervical ribs in bovines 

  Cloete, J.H.L.; Du Toit, P.J. (Published by The Government Printer, Pretoria, 1941)

  After giving a description of two instances of cervical ribs in bovines, these cases are considered in the light of various theories that have been advanced in explanation of such anomalies. It is concluded that both of ...
• Studies on Merino wool production. Plainbodied and developed Merino sheep. II. Fleece density tests on a group of extremely plainbodied Merino stud rams 

  Bosman, V.; Du Toit, P.J. (Published by The Government Printer, Pretoria, 1941)

  The analysis of the fleece densities of a group of extremely plainbodied stud rams is given. The number of fibres growing per square inch of skin (shoulder) varies from 29,100 to 53,200 with a mean of 40,900. The fleece ...
• Studies on Merino wool production. Plainbodied and developed Merino sheep. I. The standard of production of a group of plainbodied stud ewes 

  Bosman, V.; Du Toit, P.J. (Published by The Government Printer, Pretoria, 1941)

  The wool production and fleece analysis of 50 extremely plainbodied stud ewes are given. The ewes were typical of the sheep of the stud (including the stud rams) and were obtained from a breeder who had consistently bred ...
• Studies on the variation within the fleece of the characteristics of South African Merino wool. I. Tensile strength 

  Van Wyk, C.M.; Du Toit, P.J. (Published by The Government Printer, Pretoria, 1941)

  The tensile strength of the wool grown on six regions on each of eight sheep was determined. Significant differences between the regions were obtained. In all eases the tensile strength of the belly wool was considerably ...
• Preliminary observations on the breeding of ferrets in South Africa 

  Murray, G.N.; Du Toit, P.J. (Published by The Government Printer, Pretoria, 1941)

  The ferret fits in immediately with its new environment as regards its sexual cycle, when taken from the northern to the southern hemisphere. The animals that were in anoestrum in England started breeding shortly after ...
• Domsiekte or pregnancy disease in sheep. II 

  Groenewald, J.W.; Graf, H.; Bekker, P.M.; Malan, J.R.; Clark, R.; Du Toit, P.J. (Published by The Government Printer, Pretoria, 1941)

  Undoubted cases of Domsiekte have been produced by suddenly cutting the ration of good conditioned heavily pregnant ewes. An identical condition has been set up in non-pregnant ewes but a much longer period on the poor ...
• Domsiekte or pregnancy disease in sheep. I. A review of the literature 

  Groenewald, J.W.; Graf, H.; Clark, R.; Du Toit, P.J. (Published by The Government Printer, Pretoria, 1941)

  The available literature is reviewed and where possible conclusions are drawn. References are listed which deal either directly or indirectly with the question of Pregnancy Disease of sheep.
• Recent investigations into the toxicity of known and unknown poisonous plants in the Union of South Africa. XII 

  Van der Walt, S.J.; Steyn, D.G.; Du Toit, P.J. (Published by The Government Printer, Pretoria, 1941)

  The toxicity of fourteen plants was investigated. According to the available literature the following plants, viz., Mesembryanthemum angulatum Thunb., Kalanchoe rotundifolia Harv. and Urginea rubella Baker have for the ...
• Poisoning by spent calcium carbide 

  Van der Walt, S.J.; Steyn, D.G.; Du Toit, P.J. (Published by The Government Printer, Pretoria, 1941)

  (1) Poisoning by completely spent carbide is very similar to poisoning by calcium hydroxide. (2) So-called spent carbide may contain active carbide which, when ingested (moistened), will yield acetylene. Furthermore, other ...
• Poisoning by voided urine 

  Van der Walt, S.J.; Steyn, D.G.; Du Toit, P.J. (Published by The Government Printer, Pretoria, 1941)
• The hydrocyanic acid content of Cynodon plectostachyum Pilger (Giant Star grass) and its suitability as a pasture grass 

  Van der Walt, S.J.; Steyn, D.G.; Du Toit, P.J. (Published by The Government Printer, Pretoria, 1941)
• South African Senecio alkaloids. Part 6. The toxic alkaloids of Senecio scleratus sp. nov. Schweikerdt 

  De Waal, H.L.; Pretorius, T.P.; Du Toit, P.J. (Pretoria : The Government Printer, 1941)

  (1) Senecio sceleratus sp. nov. 'Schweickerdt is an extremely toxic Senecio species. It contains at least three more or less toxic alkaloids, viz., isatidine, retrorsine and a new alkaloid, sceleratine, (2) Sceleratine, ...
• The relative digestibility of the constituents of the carbohydrate complex of grasses at successive stages of growth with reference to their partition into crude fiber and nitrogen-free extract according to the standard method for feeding stuff analysis 

  Louw, J.G.; Du Toit, P.J. (Pretoria : The Government Printer, 1941)

  The structural constituents, natural cellulose, hemicelluloses and lignin, in graminaceous food materials, faeces, and the crude fibre isolated from these have been determined. The results showed that: (1) crude fibre ...
• Thermocouples for temperature measurements on skin surfaces and in living tissue 

  Elder, J.S.; Du Toit, P.J. (Pretoria : The Government Printer, 1941)

  Details have been given of the construction of thermocouples suitable for temperature measurements on skin surfaces and in living tissue. The sources of error have been discussed, and tests of the accuracy of the method ...
• Further observations on the scrotal skin temperature of the bull, with some remarks on the intra-testicular temperature 

  Riemerschmid, G.; Quinlan, John; Du Toit, P.J. (Pretoria : The Government Printer, 1941)

  1. The temperature of the scrotal surface has been recorded at various air-temperatures within the range 10°C. to 40°C. (50°F. to 104°F.). 2. At low air-temperatures (10°C. to 25°C.) the temperature on areas I, II, and ...
• A note on the results of an attempt to fertilise native goat-ewes with sheep-rams 

  Quinlan, John; Roux, L.L.; Van Aswegen, W.G.; De Lange, N.; Du Toit, P.J. (Pretoria : The Government Printer, 1941)

  (1) Ten female native goats were mated to, or artificially inseminated with semen from a number of highly fertile sheep-rams during four breeding seasons. (2) There was great difficulty in obtaining fertilisation, but ...
• The hydrogen-ion concentration of the vaginal secretion of merino sheep during oestrus, dioestrus, and pregnancy, with some remarks on its influence on sex-determination, and the influence of the vaginal temperature at the time of mating on conception 

  Quinlan, John; Myburgh, S.J.; De Vos, D.; Du Toit, P.J. (Pretoria : The Government Printer, 1941)

  (1) The pH of the vaginal secretion of mature merino ewes, measured during oestrus, gave a mean value of 6·648, with a range of 5·85 to 7·40. During mid-dioestrus the mean value was 6·694, with a range of 6·00 to 7·60. ...
• Studies on the photosensitisation of animals in South Africa. XI. The reaction of the sensitised Merino skin to radiation in different regions of the spectrum 

  Riemerschmid, G.; Quin, J.I.; Du Toit, P.J. (Pretoria : The Government Printer, 1941)

  1. The effect of sunlight on sheep artificially photosensitised with eosin and phylloerythrin was investigated. Glass filters were used to ascertain whether any of those rays readily absorbed by these dye-stuffs produced ...

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