SEXUAL ORGANS AND TISSUES. 



59 



Hatchett Jackson's (W.) Edition of Rolleston's Forms of Animal Life. 



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1871 and 1877. 

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Lectures on the Physiology of Plants, trans, by Prof. Marshall Ward. 



Cambridge, 1SS7. 



Vines, S. H. — Vegetable Reproduction (Ency. Brit.). Lectures on the Physiol- 

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Wiedersheim, R. — Elements of the Comparative Anatomy of Vertebrates, 

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