298 PHYSICAL BASIS OF HEEEDITY 



De Vrtes, H. : Ueber die Zwillingsbastarde von CEnothera naneUa. Ber. 



deutsch. hot. Ges., 1908, xxvi. 

 De Vbies, H. : Bastarde von (Enothera gigas. Ber. deutsch. hot. Ges., 



1908, xxvi. 

 De Vries, H. : On Triple Hybrids. Bot. Gaz. 1909, xlix. 

 Db Veies, H. : Ueber Doppeltreziproke Bastarde von (Enothera biennis 



and O. muricata. Biol. Centr., 1911, xxxi. 

 Db Veies, H. : Gruppenweise Artbildung, 1913, Berlin. 

 De Vries, H. : The Probable Origin of (Enothera Lamarckiana Ser. 



Bot. Gaz., 1914, xvii. 

 De Vries, H. : Ueber kiinstliche Beschleunigung der Wasseraufnahme in 



Samen durch Dmck. Biol. Centr.^ 1915, xxxv. 

 De Veies, H. : (Enothera gigas na/nella, a Mendelian Mutant. Bot. Gaz., 



1915, Ix. 



De Vries, H. : New Dimorphic Mutants of the (Enotheras. Bot. Gaz., 



1916, lii. 



De Vries, H. : Mass Mutation in Zea Mays. Science, 1918, xlvii. 



Db Vries, H. : Van Amoebe tot Mensch. Laatste Les aan de Universi- 

 teit van Amsterdam, op 13 Juni 1918. 



"Weinstein, a.: Coincidence of Crossing Over in Drosophila melano- 

 gaster (ampelophila). Genetics, 1918, iii. 



Wbnrich, D. H. : The Spermatogenesis of Phrynotettix Magnus with 

 Special Reference to .Synapsis and the Individuality of the Chromo- 

 somes. Bull. Mus. Comp. Zool., Harvard CoU., 1916, Ix. 



Weismann, a. : The Germ-plasm, English translation by W. N. Parker 

 and Harriet Ronnf eldt. New York, 1893. 



Weismann, a. : Vortrage iiber Deszendenztheorie, Jena, 1913. 



IJVheeler, W. M. : The Origin of Female and Worker Ants from the 

 Eggs of Parthenogenetic Workers. Science, 1903, xviu. 



Wheeler, W. M.: The Effects of Parasitic and Other Kinds of Cas- 

 tration in Insects. Jour. Exp. Zool., 1910, viii. 



Wheeler, W. M. : A Gynandromorphous Mtutillid. Psyche, 1910, xvii. 



Wheeler, W. M. : Gynandromorphous Ants, Described During the Dec- 

 ade, 1903-1913. Am. Nat., 1914, xlviii. 



Wheldale, M. : On the Nature of Anthocyanin. Proc. Cambridge Phil. 

 Soc, 1909, XV. 



Wheldale, M. : The Colors and Pigments of Flowers, with Special Ref- 

 erence to Genetics. Proc. Boy. Soc, 1909, B, Ixxxi. 



Wheldale, M. : Die Vererbung der Bliitsenf arbe bei Antirrhinum majus. 

 Zeit. Abst. Vererb., 1910, iii. 



Wheldale, M. : The Chemical Differentiation of Species. Biochem. 

 Jour., 1911, V. 



Wheldale, M. : On the Formation of Anthocyanin. Jour. Gen., 1911, L 



