Summary
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1.
The results of these experiments show that inP. humanus var.corporis three types of families may occur: (a) Female families, (b) Male families, (c) Mixed families, in which there is an indication of some ratio between the numbers of the two sexes.
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2.
There is a strong suggestion of the existence of two kinds of females, as well as two kinds of males.
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3.
The attached chart gives the pedigree of two families carried through four generations.
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References
Bacot, A. (1917.) “A contribution to the bionomics ofPediculus humanus (vestimenti) andPediculus capitis.”Parasitology, Vol. IX. pp. 228–258.
Hindle, E. (1917.) “Notes on the Biology ofPediculus humanus”Parasitology, Vol. IX. pp. 259–265.
Keilin, D. andNuttall, G. H. F. (1919.) “Hermaphroditism and other abnormalities inPediculus humanus.”Parasitology, Vol. XI.
Nuttall, G. H. F. (1917.) “The Biology ofPediculus humanus”Parasitology, Vol. IX. pp. 80–185.
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The expenses of this Investigation were defrayed, in part, by a Grant from the Royal Society.
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Hindle, E. Sex inheritance inPediculus humanus var.corporis . Journ. of Gen. 8, 267–277 (1919). https://doi.org/10.1007/BF02983268
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DOI: https://doi.org/10.1007/BF02983268