THE OPINIONS OF NEO-LAMARCKIANS. 531 



tory, XXIV., p. 493. Hints on the Evolution of Certain 



Bristles, Spines, and Tubercles of Certain Caterpillars. 

 1890; Ball, W. H. Proceedings of the Biological Society of 



Washington, May. On Dynamic Influence in Evolution. 

 1890. Jackson, R. T. Memoirs Boston Society Natural History, 



IV., p. 277 (July); American Naturalist, 1891, p. 11. 



Phylogeny of the Pelecypoda ; The Aviculidae and Thei^ 



Allies. 



1890. Dall, W. H. Transactions of the Wagner Free Institute of 



Science, Philadelphia, III., p. 58 (September). American 

 Naturalist, 1894, p. 909. Origin of the Plaits on Columella 

 of Gastropoda. 



1891. Scott, W. B. American Journal of Morphology, p. 378. 



On the Osteology of Mesohippus and Leptomeryx ; On 

 Some of the Factors in the Evolution of the Mammalia. 



1891. Ward, Lester F. Proceedings Biological Society of Wash- 



ington, Annual Address. Neo-Darwinism and Neo-La- 

 marckism. 



1892. Elliot, D. G. The Auk, IX., January. The Inheritance of 



Acquired Characters. 

 1892. Ryder, J. A. American Naturalist, pp. 923-929. A Geo- 

 metrical Representation of the Relative Intensity of the 

 Conflict Between Organisms. 



1892. Ryder, J. A. Proceedings Academy Natural Sciences, Phila- 



delphia, pp. 219-224. On the Mechanical Genesis of the 

 Scales of Fishes. 



1893. Sharp, Benj. American Naturalist (February), p. 89. Joint 



Formation Among the Invertebrata. 



1893. Ryder, J. A. Proceedings American Philosophical Society, 

 p. 192. Energy as a Factor in Organic Evolution. 



1893. Hyatt, Alpheus. Proceedings Boston Society Natural His- 

 tory, p. 59. Bioplastology and the Related Branches of 

 Biologic Research. 



1893. Riley, C. V. Proceedings Entomological Society Washing- 

 ton, II., June, No. 4. Parasitism in Insects. 



1893. Orr, Henry B. A Theory of Development and Heredity. 

 New York and London : Macmillan & Co. 8vo. pp. 255. 



1893. Hyatt Alpheus. Proceedings of the American Philosophical 

 Society, p. 349. The Phylogeny of an Acquired Charac- 

 teristic. 



