INDIVIDUATION AND REPRODUCTION 235 



CHILD, C. M. 



1912. "Studies, etc.: IV, Certain Dynamic Factors in the Regulation 

 of Planaria dorotocephala in Relation to the Axial Gradient," 

 Jour, of Exp. Zool., XIII. 



19130. "Certain Dynamic Factors in Experimental Reproduction and 

 Their Significance for the Problems of Reproduction and Develop- 

 ment," Arch. f. Entwickelungsmech., XXXV. 



19136. "Studies, etc.: VI, The Nature of the Axial Gradients in Planaria 

 and Their Relation to Antero-posterior Dominance, Polarity and 

 Symmetry," Arch. f. Entwickelungsmech., XXXVII. 



1914(1. "Susceptibility Gradients in Animals," Science, XXXIX. 



19146. "Studies, etc.: VII, The Stimulation of Pieces by Section in 

 Planaria dorotocephala," Jour, of Exp. Zool., XVI. 



1914*;. "Studies, etc.: VIII, Dynamic Factors in Head-Determination 

 in Planaria," Jour, of Exp. Zool., XVII. 



DUCCESCHI, V. 



1901. "Uber die Wirkung engbegrenzter Nervencompression," Arch. f. 

 d. ges. Physiol, LXXXIII. 



FISCHER, A. 



1911. "Ein Beitrag zur Kenntnis des Ablaufes des Erregungsvorgangs 

 im marklosen Warmbluternerven," Zeitschr. f. Biol., LVI. 



FITTING, H. 



1907. "Die Reizleitungsvorgange bei den Pflanzen," Sonderabdr. aus 

 Ergebn. d. Physiol., Jhg. IV u. V. Wiesbaden. 



KOWALEWSKY, A. 



1871. " Embryologische Studien an Wurmern und Arthropoden," Mem. 

 Acad. St. Peter sbourg, (7) XVI. 



KRETZSCHMAR, P. 



1904. "tiber Entstehung und Ausbreitung der Plasmastromung in Folge 

 von Wundreiz," Jahrbiicher f. wiss. Bot., XXXIX. 



LODHOLZ, E. 



1913. "Das Dekrement der Erregungswelle im erstickenden Nerven," 

 Zeitschr. f. allgem. Physiol., XV. 



MCCALLUM, W. B. 



1905. "Regeneration in Plants," Bot. Gazette, XL. 



MORGAN, T. H. 



1904. "Regeneration of Heteromorphic Tails in Posterior Pieces of 

 Planaria simplicissima," Jour, of Exp. Zool., I. 



PATTERSON, J. T. 



1913. " Polyembryonic Development in Tatusia novemcincta" Jour, 

 of Morphol., XXIV. 



