Reports of the Government Veterinary Bacteriologist of Natal

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    Annual report of the Government Bacteriologist and Director Laboratory, Pietermaritzburg for the year ended December 31st, 1903
    (Pietermaritzburg : Times Printing and Publishing Company, 1905) Union of South Africa. Dept. of Agriculture
    Report of 1903 about the outbreak of horsesickness and babonic plague in Natal
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    Dipping and tick-destroying agents : part 2
    (Pretoria : The Government Printing and Stationery Office, 1910) Watkins-Pitchford, H.
    Part 2 deals less with the composition and the practical use of the successful dip but more in the way the effects of the dip are exerted both upon the animal economy and the tick itself. Schedule A: Results of research looking at the ability of an animal to kill ticks place upon it with the number of dippings the animal receives Schedule B: A chart showing that the length of time elapsing since the last dipping determines the ability of an habituated animal to kill ticks which may become attached to it; Schedule C: A chart with observations to show that in habituated animals the effect on ticks of a given dipping is more rapid then in non-habituated animals; Schedule D: A chart of observations showing the retardation of the infective process in the habituated animal; Schedule E: Estimations of the amount of Arsenic retained by the hair and hide of animals for varying periods after dipping; Schedule F: A chart to show the elimination of arsenic by the kidneys at varying periods after dipping.
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    Dipping and tick destruction : part 4
    (Pretoria : Government Printing and Stationery Office, 1912) Watkins-Pitchford, H.; Union of South Africa. Dept. of Agriculture
    This report deals more with the details of the actual attachment of the tick and the attendant infection of its host.The topics reported on are: Schedule I – Two charts illustrating the production of the disease East Coast fever by means of a single tick; Schedule II – Four charts showing that after attachment for a certain period to its host the tick loses its power of infection; Schedule III – Four charts illustrating the finding that the brown tick cannot infect its host until many hours after its effective attachment; Schedule IV – Three charts showing that the brown tick can not only reattach itself but can actually infect successive hosts; Schedule V – Two charts showing the ability of the horse to act as the host of, and convey the disease, by means of a single infectious tick; Schedule VI – A schema showing the exact period or phase of the tick’s attachment during which it is infectious; Schedule VII – A photograph of a group of regularly dipped equines to show that the animals are not affected in condition; Schedule VIII – Six microphotographs on the head of the tick; Schedule IX – Correspondence relating to effect of “Laboratory” dip upon wool;
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    Dipping and tick-destroying agents : part 3
    (Pretoria : Government Printing and Stationery Office, 1911) Watkins-Pitchford, H.; Union of South Africa. Dept. of Agriculture
    This report starts off with a synopsis of the previous two reports. There after the following schedules are discussed: Schedule I - Shortest periods for engorgement of larva and nymph of the Brown tick; Schedule II - Details of adjustment of "Three-Day" Dip; Schedule III - Lethal effect of "Three-Day" and "Laboratory" Dips on distended female Brown ticks; Schedule IV - Effect of "Three-Day" Dip at intervals of 72 hours upon adult tick-life generally; Schedule V - Lethal effect of dips half and five-twelfth strengths at intervals of 48 hours, showing the increase of efficiency resulting from the addition of soap and paraffin; Schedule VI - The " revulsive effect " of dipping on immature tick-life; Schedule VII - Details for preparation of "Three-Day" dipping fluid; Schedule VIII - Details of preparation of " Three-Day" ear dressing; Schedule IX - General map of experimental paddocks; Schedule X - Diagram illustrating rate of tick-travel, etc.; Schedule XI - Map illustrating rate at which tick-infested paddocks are capable of being cleared; Schedule XII - Relative tick activity during day and night; Schedule XIII - Residual effect of " Three-Day" Dip in horses and cattle; Schedule XIV - The agency of the tail-tuft in the collection of ticks; Schedule XV - The suitability of "Three-Day" Dip in the treatment of scab in sheep; Schedule XVI - Effect of weekly dipping process (with" Laboratory" Dip) upon secretion of milk; Schedule XVII.- Illustration of "Isometer" apparatus for estimation of arsenic.
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    Dipping and tick-destroying agents : part 1
    (Pietermaritzburg : "Times" Printing and Publishing Company, Limited, 1910) Watkins-Pitchford, H.; Union of South Africa. Dept. of Agriculture
    This report is intended to show the efficacy of certain preparations supplied for dipping and spraying cattle. The agents discussed are Coopers "tixol"; McDougall's dip; Quibell's paste dip; Cooper's powder; Demuth dip; Izo-izal sheep dip; Thomas's dip; Holmes's dip; Ialine sheep dip; Hypo-chlorite or electrolysed sea water; Arsenite of soda; Erkenbrach's cattle dip; Alderson's cattle dip; 4 types of "Laboratory" spraying fluid. In Appendix A the results of the various agents are discussed. Appendix B explains the composition of the dip and Appendix C describes the working of Watkins-Pitchford's Spraying appliance.