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Oogenesis in Philosamia cynthia
  • 38
Variations in chromosome number in the spermatogenesis of Philosamia cynthia
A study of spermatogenesis was made on four groups of a pedigreed strain of the moth Philosamia cynthia, and the results were compared with spermatogenesis in the wild material.
  • 9
Comparison of Caenolestes with Polyprotodonta and Diprotodonta
roof, cutting off the space for the twvo upper trays, and omittinicg the partition fromt this space. When packed with. nests of the Fielcie type the whole outfit wveiohed about twventy-six pounds;Expand
  • 10
Pressure experiments on the egg of Cerebratulus Lacteus
The following is a record of the results obtained by compressing the eggs of Cerebratulus lactews" during maturation and early cleavage stages. The material is excellent for this purpose, sinceExpand