G55 



Diplomas Received and Acknowledged by J'aye. 



Airy, George Biddle 481 



Akerman, A 285 



Ai-mstrong, U. G 375 



Baumbauer, E. H. Von 275 



Ericsson, J 408 



Geikie. James 298 



Peters, C. H. F 436 



Thomson, William 275 



Fending No7ninations Read, 



893 to 903 3, 15, 17 



904 3, 15, 17, 27, 62, 76, 117, 157 



905 to 908 3, 15, 17, 27 



909 to 919 15,17,27,62,76,117,157,160,192,195,218 



920to92tJ 76,117,157,160,192,195,218 



927 to 933 287, 298, 300, 352 



934 to 945 409, 438. 482, 483, 498, 523, 567, 649 



946 to 950 567,649 



Societies and yoinnah placed on the List of Correspondents. 



Haverford, Penn. Haverford College 17 



Helsingtors. Soci6t6 Zoologique et Botaniciue de Finlande 159 



Lyons. Mus^e Gnimet 352 



Mexico. Uhapultepec Observatory 566 



St. Petersburg. Physical Section ol" the Ch. Plij^s. Soc. Imp. University . . 353 



Vermont Historical Society 298 



Conmnoiications. 



ASHBURNER, ChAS. A. 



Geological Section at St. Mary's, Elk county, Penn 300, 337 



Brinton, Daniel G. 



Obituary Notice of Samuel S. Haldeman 109, 117, 275, 279 



Obituary Notice of John Neill 160, 161 



The Names of the Gods in the Kiche Myths, Central America . 563, 567, 613 



Chase, Pliny Earlk. 



Nodal estimate of the Velocity of Light. (Astronomical approxima- 

 tions IV) 3, 4 



Cometary Paraboloids. (Astron. Approx. V) 17, IS 



Cosmical Determinatiun of Joule's Equivalent. (Astron. Approx. 



VI) 17, 20 



Kelations of Chemical Affinity to Luminous and Cosmical Energies . 17, 21 

 List of Papers communicated to the American Philosophical So- 

 ciety by P. E. Chase 160, 184 



Photodynaniics 211, 203 



Pliotodynamic Notes I 262 



'• " II 354 



" " III 438, 446 



" " IV 566, 567 



Cope, E. D. 



Contribution to the History of the Vertebrata of the Permian Forma- 

 tion of Texas 27, 38 



Oa Certain Tertiary Strata of the Great Basin . 60 



On the Genera of Creodonta 7S 



On the Vertebrata of the Wind River Eocene beds of Wyoming .... 195 

 [Withdrawn. See page 197]. 



The Systematic Arrangement of the Order Perissodactyla 353, 377 



Note on the Structure of the Posterior Foot of Toxodon 403 



