28 DEVELOPMENT OF SIUM CICUTAEFOLIUM. 



LITERATURE CITED. 



Agassiz, Louis. 



1848-1849. Twelve lectures on comparative embryology. Boston: Lowell 



Institute. 



Braun, Alexander. 



1851. Reflections on the phenomenon of rejuvenescence in nature, especially 

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Burns, George P. 



1904. Heterophylly in Proserpinaca palustris L. Annals of Botany, 18: 579- 

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 CusHMAN, Joseph A. 



1902. Studies of localized stages of growth in some common New England 

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1903. Studies of localized stages in some plants of the botanic gardens of 

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1904. Localized stages in common roadside plants. Amer. Nat, 38: 819-832. 



Glaser, Otto C. 



1902. The law of von Baer. Science, N. S., 1 5 : 976-982. 



Goebel, Karl. 



1898-1901. Organographie der Pflanzen insbesondere der Archegoniaten und 

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Haeckel, Ernst. 



1866. Generelle Morphologic der Organismen, 2 Bde. Berlin : G. Reimer. 



Hyatt, Alpheus. 



1890. Genesis of the Arietidae. Smithsonian Contribution 673, and Mem. 



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Jackson, R. T. 



1899. Localized stages in development in plants and animals. Proc. Boston 

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Klebs, G. 



1903. Willkiirliche EntwicWungsanderungen bei Pflanzen. pp. iv, 166. Figs. 

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McCallum, W. B. 



1902. On the nature of the stimulus causing the change of form and structure 

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TammES, Fraulein TinB. 



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Von Baer, K. E. 



1828. Ueber Entwicklungsgesdhiohtc der Thiere. Beobadhtungen und Re- 

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