INDEX 



829 



Skeletons, Fossil, Adam Hermann, 

 43 



Sheppard, W. F, Biometrics, Bay- 

 mond Pearl, 418 



Shorter Articles and Correspondence, 

 195, 282, 541, 682, 799 



Shull, Charles A., Abnormal In- 

 cisors of Marmota Monax L., 457 



Shull, G. H., The Species Question, 



Smith, T., Inheritance through Pla- 

 cental Circulation, F. T. L., 134 

 Somites in the Chick, Marian E. 



Hubbard, 466 

 Southard, E. E., and F. P. Gay, In- 

 heritance through Placental Cir- 

 culation, F. T. L., 134 

 Species, Evolution of, John T. 

 Gulick, 48; Geminate, David 

 Starr Jordan, 73; What is a 

 Species? S. W. Williston, 184; 

 The Species Question, D. S. John- 

 son, 217; Charles E. Bessey, 

 218; Nathaniel Lord Britton. 

 225; J. C Arthur, 243; D. T. 

 MacDougal, 249; Frederic E. 

 Clements, 253; H. C. Cowles, 

 265 ; Discussion of, J. M. Coulter, 

 J. B. Pollock, T. J. Burrill, E. 

 G. Hill, G. H. Shull, J. A. Har- 

 ris, A. E. Hitchcock, 272; J. 

 A. Allen, 592 



Enteropneusta, W. 



Spengel, J. W 

 Spillman, W. 



J., Spurious Allelo- 



Strasburger, E., Apogamy in Ferns, 



Bradley M. Davis, 74 

 ' Student, ' ' Biometrics, Baymond 



Swingle, Leroy D., Embryology of 



Myosnrus Minimus, 582 

 Symbiosis in Fern Prothallia, DouG- 



Houghton Camp 



>, W. A. Setchell, 682 

 of Insects, Charle: 



Verrill, A. E., Geographical Dis- 

 Vertebrate Eyes, G. H. Parker, 601 

 Walker, E. L., Amoeba Studies, G. 



i the Philippines, 56: 

 )f Parasitism, 630 

 t, Margaret F., M 



Watson, J. B., Animal 

 H. S. Jennings, 355 



Weber, Max, Crinoids, 

 Austin Hobart Clark, 



Williston, S. W., What is a £ 



cies? 184; Pelycosauria, E. 



Case, 628; Conrad Fissure, 



Brown, 629; Ankylosauridae, 



Brown, 629 

 Woodruff, Lorande Loss, Pj 



mecium, 520 

 Woods, F. A., Human Heredity, 

 Woodworth, C. W., Leg Tendons 



Insects, 452 

 Wright, A. H. ; and A. A. Ali 



Breeding Habits of the Sw£ 



Cricket Frog, 39 



