Browsing 1926 11th and 12th Reports of the Director of Veterinary Education and Research - Part 1, September 1926 by Issue Date

Browsing 1926 11th and 12th Reports of the Director of Veterinary Education and Research - Part 1, September 1926 by Issue Date

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  • Curson, H.H.; Theiler, Arnold, Sir, 1867-1936; Union of South Africa. Department of Agriculture (Pretoria : Government Printer and Stationery Office, 1926)
    Under the circumstances, it is felt that, provisionally at any rate the parasite may be considered as a species of Leishmania, and it is proposed that it be named Leishmania caprae. n.s. The smear is now in the possession ...
  • Van Zyl, J.P.; Theiler, Arnold, Sir, 1867-1936; Union of South Africa. Department of Agriculture (Pretoria : Government Printer and Stationery Office, 1926)
    Although the recorded work is not comprehensive enough to allow for very definite conclusions, it is indicated that the decomposition of this common scab dip is not so rapid nor of such a nature that the farmer with a small ...
  • Bedford, G.A.H.; Theiler, Arnold, Sir, 1867-1936; Union of South Africa. Department of Agriculture (Pretoria : Government Printer and Stationery Office, 1926)
  • Monnig, H.O.; Theiler, Arnold, Sir, 1867-1936; Union of South Africa. Department of Agriculture (Pretoria : Government Printer and Stationery Office, 1926)
  • Bedford, G.A.H.; Theiler, Arnold, Sir, 1867-1936; Union of South Africa. Department of Agriculture (Pretoria : Government Printer and Stationery Office, 1926)
  • Henrici, M.; Theiler, Arnold, Sir, 1867-1936; Union of South Africa. Department of Agriculture (Pretoria : Government Printer and Stationery Office, 1926)
    1. The chlorophyll-content of Bechuanaland grasses is not constant throughout the year, but varies from a very high initial value on young leaves, decreases according to the duration and intensity of drought periods, and ...
  • Monnig, H.O.; Theiler, Arnold, Sir, 1867-1936; Union of South Africa. Department of Agriculture (Pretoria : Government Printer and Stationery Office, 1926)
    Experiments in connection with the following points are in progress, and have been partly completed: (a) Bionomics of the free-living larval stages. (b) The development of the worms in sheep at different seasons. (c) The ...
  • Bedford, G.A.H.; Du Toit, P.J. (Pretoria : Government Printer and Stationery Office, 1926)
    Before commencing to write this paper, it was realized only too fully that any check list or host list of the external parasites occurring on South African mammals, birds, and reptiles written at the present time would be ...
  • Cowdry, E.V.; Theiler, Arnold, Sir, 1867-1936; Union of South Africa. Department of Agriculture (Pretoria : Government Printer and Stationery Office, 1926)
    The evidence observed in favour of a causative relationship between Rickettsia ruminantium and the production of heartwater falls under the following headings: (1) The discovery of Rickettsia ruminantium in the tissues ...
  • Henning, M.W.; Theiler, Arnold, Sir, 1867-1936; Union of South Africa. Department of Agriculture (Pretoria : Government Printer and Stationery Office, 1926)
    On reviewing the results of these experiments, there can be little doubt that the plant Cotyledon wallichii Harv. (kandelaar bos or bandjes bos) is at least one of the causes of the disease known as krimpsiekte in the ...
  • Neser, C.P.; Theiler, Arnold, Sir, 1867-1936; Union of South Africa. Department of Agriculture (Pretoria : Government Printer and Stationery Office, 1926)
    1. In the dikkop form of horse-sickness: (a) sedimentation of red corpuscles is much accelerated in the later stages of the disease, owing to clumping of the cells. This clumping is due to a property acquired by the ...
  • Cowdry, E.V.; Theiler, Arnold, Sir, 1867-1936; Union of South Africa. Department of Agriculture (Pretoria : Government Printer and Stationery Office, 1926)
    1. Pleomorphic, bacterium-like, Gram-negative, intracellular micro-organisms, which stained much less intensely with ordinary dyes than most bacteria, were found in fifteen ticks comprising examples of both the Argasidae ...
  • Mitchell, D.T.; Theiler, Arnold, Sir, 1867-1936; Union of South Africa. Department of Agriculture (Pretoria : Government Printer and Stationery Office, 1926)
    In South Africa three species of liliaceous plants occur to which the common name of Slangkop (snake head) has been given, all of which have been blamed for many years as a cause of mortality in stock. They are: Urginea ...
  • Le Roux, P.L.; Theiler, Arnold, Sir, 1867-1936; Union of South Africa. Department of Agriculture (Pretoria : Government Printer and Stationery Office, 1926)
    1. The domestic fowl (Gallus domesticus) in Natal suffers heavily from verminous infestations. 2. Six species of nematodes and nine species of cestodes have been collected from the digestive tract of the fowl. 3. Three ...
  • Henrici, M.; Du Toit, P.J. (Pretoria : Government Printer and Stationery Office, 1926)
    A description of the meteorological, tellurical, and edaphic features of a typical farm in the semi-arid region of Bechuanaland is given, and the osmotic behaviour of the local flora recorded. The differences between suction ...
  • Henrici, M.; Theiler, Arnold, Sir, 1867-1936; Union of South Africa. Department of Agriculture (Pretoria : Government Printer and Stationery Office, 1926)
    From the locus of writing this article and the companion paper on “Wilting,” it is impossible to consult the extensive literature on transpiration available in European libraries, and for many points of reference Burgerstein's ...
  • Steck, W.; Theiler, Arnold, Sir, 1867-1936; Union of South Africa. Department of Agriculture (Pretoria : Government Printer and Stationery Office, 1926)
    (1) A three-month-old bull-calf dies suddenly as a result of a complicated volvulus. (2) This volvulus is due to a reduction of the mesentery (probably congenital) in a part of the small intestine, which allows a part to ...
  • Henrici, M.; Du Toit, P.J. (Pretoria : Government Printer and Stationery Office, 1926)
    The occurrence of cyanogenetic compounds in grasses which do not show such in the normal fresh state is common during wilting or withering of natural veld in Bechuanaland. The phenomenon is particularly noticeable at the ...
  • Quinlan, J.B.; Steck, W.; Robinson, E.M.; Theiler, Arnold, Sir, 1867-1936; Union of South Africa. Department of Agriculture (Pretoria : Government Printer and Stationery Office, 1926)
    The primary lesions are infected wounds in various parts of the body, most frequently in the extremities, from which, owing to the invasion with virulent necrosis bacilli, necrosis and gangrene and collateral phlegmons ...
  • Monnig, H.O.; Theiler, Arnold, Sir, 1867-1936; Union of South Africa. Department of Agriculture (Pretoria : Government Printer and Stationery Office, 1926)
    (1) Cysticercoids, of which the hooks resemble those of Amoebotaenia sphenoides, were found in earthworms collected in a fowl-run infested with this tapeworm. (2) Earthworms [Ocnerodrilus (Hyogenia) africanus, Beddard, ...