Your PDF has successfully downloaded.

You may be interested in finding more content on these topics:


You are not currently logged in.

Access JSTOR through your library or other institution:


Log in through your institution.

Journal Article

The American Society of Zoologists

Lorande Loss Woodruff
New Series, Vol. 29, No. 741 (Mar. 12, 1909), pp. 424-438
Stable URL:
Page Count: 15

You can always find the topics here!

Topics: Ova, Female animals, Eggs, Species, Chromosomes, Arm, Spermatozoa, Vertebrates, Eyes, Embryos
Were these topics helpful?
See something inaccurate? Let us know!

Select the topics that are inaccurate.

  • Download PDF
  • Add to My Lists
  • Cite this Item
We're having trouble loading this content. Download PDF instead.

Notes and References

This item contains 1 reference.

  • 1
    Quatrt. Jour. Mic. Sci., Vol. 49, pp. 635-690.