PHYSIOLOGICAL GRADIENTS. 1 87 



Regel, F. 



'76 Die Vermehrung der Begoniaceen aus ihren Blattern. Jen. Zeitschr., X. 

 Robbins, H. S., and Child, C. M. 



'20 Carbon Dioxide Production in Relation to Regeneration in Planaria 



dorotoccphala. BIOL. BULL., oooo. 

 Stahl, E. 



'85 Uber den Einfluss der Beleuchtungsrichtung auf die Teilung der 



Equisetumsporen. Berichte deutsch. Bot. Ges., III. 

 Stevens, N. M. 



'02 Regeneration in Antennularia rainosa. Arch. f. Entwickelungsmech., 



XV. 



'10 Regeneration in Antennularia. Arch. f. Entwickelungsmech., XXX. 

 Stockard, C. R. 



'07 The Artificial Production of a Single Median Cyclopian Eye in the 

 Fish Embryo by Means of Sea Water Solutions of Magnesium Chlo- 

 ride. Arch. f. Entwickelungsmech., XXIII. 

 '09 The Development of Artificially Produced Cyclopian Fish. " The 



Magnesium Embryo." Jour. Exp. Zool., VI. 



'10 The Influence of Alcohol and Other Anesthetics on Embryonic De- 

 velopment. Amer. Jour. Anat., X. 



'n The Experimental Production of Various Eye Abnormalities and an 

 Analysis of the Development of the Primary Parts of the Eye. Arch, 

 f. vergl. Ophthalmol. I. 

 Tashiro, S. 



'17 A Chemical Sign of Life. Chicago. 

 Taylor, F. B., and Alvarez, W. C. 



'17 The Effect of Temperature on the Excised Segments of Different 



Parts of the Intestine. Amer. Jour. Physiol., XLIV. 

 Wilson, H. V. 



'07 On Some Phenomena of Coalescence and Regeneration in Sponges. 



Jour. Exp. Zool., V. 

 'n Development of Sponges from Dissociated Tissue Cells. Bull. Bur. 



Fish., XXX. 

 Waller, A. D. 



'03 Signs of Life from their Electrical Aspect. London. 

 Winkler, H. 



'ooa Uber Polaritat, Regeneration und Heteromorphose bei Bryopsis. 



Jahrb. f. wiss. Bot., XXXV. 



'oob Uber den Einfluss ausserer Faktoren auf die Teilung des Eies von 

 Cytosira barbaia. Berichte deutsch. Bot. Ges., XVIII. 



