Experimental Zoology. New-York, Mac Millan

12. The influence of a strong centrifugal force on the frog’s egg. Archiv für Entswicklungsmechanik, t. XXII, 1906.

13 and Lyox (E.-P.). The relation of the substances of the egg separated by a strong centrifugal force to the location of the embryo. Idem, t. XXIV, 1907.

14. The effect of centrifuging the egg of the Molluse Cumingia. Science, N: S,, t. XXVII, 1908.

15. and Srooner. The polarity of the centrifuged egg. Archive für Entwicklungsmechanik, t. XX VIII, 1909.

16. A biological and cytological study of sex determination in Phylloxerans and

Aphids. Journal of experimental Zoology, “

t MIE 4909: