Quarterly journal of microscopical science . A/7^ cr/J. Pavlovsky, del. A further Account of the Spermatogenesisof Lice, ByH. Graham Cannon. With 1 Text-figure. In 1919 the late Professor Doncaster and the present authorinvestigated the gametogenesis of the lice Pedicuiuscorporis and Pediculus capitis. An account of thiswork was published during the following year (3). The cytologyof the spermatogenesis was found to be so peculiar and in somerespects unique, that it was decided to extend the work toother lice. At the time of his death Professor Doncaster wasworking on the gametogenesis of the


Quarterly journal of microscopical science . A/7^ cr/J. Pavlovsky, del. A further Account of the Spermatogenesisof Lice, ByH. Graham Cannon. With 1 Text-figure. In 1919 the late Professor Doncaster and the present authorinvestigated the gametogenesis of the lice Pedicuiuscorporis and Pediculus capitis. An account of thiswork was published during the following year (3). The cytologyof the spermatogenesis was found to be so peculiar and in somerespects unique, that it was decided to extend the work toother lice. At the time of his death Professor Doncaster wasworking on the gametogenesis of the horse-louse and the dog-louse. The material collected by him together with bis noteswas handed over to me by Professor J. Stanley Gardiner. A perusal of the notes showed that Doncaster had onlycursorily examined his material and had not arrived a1 anynew conclusions. For this reason it was not considered advis-able to publish any further account based on the new , at the end of 1919 an account of the spermatogenesisof Pedi


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