INDEX. 



535 



GENERAL INDEX. 



Additions to Library, 511. 



Additions to Museum, 506 



Arango, R. Description of new Spe- 

 cies of Terrestrial MoUusca of Cuba, 

 10, 15. 



Brock, J. P. Announcement of death 

 of. 162. 



Bryan, Col. T. M. Announcement of 

 death of, 87 



Buckley, S. B. Quercus rubra L., var. 

 Texana, 111, 123; Quercus Durandii, 

 111, 121 ; Rhus cotinoides. 111, 125. 



By-laws. Amendment to Art. 3, Chap. 

 XV., 443. 



Chapman, Dr. H C. Resignation as 

 member of Council, 91 ; Observa- 

 tions on the Hippotamus, 112, 126 ; 

 On a foetal Kangaroo and its Mem- 

 branes, 459, 468. 



Chaudoir, M. de. Announcement of 

 death of, 145. 



Clay, Jos. A. Announcement of death 

 of, 87. 



Coates, B. H. Announcement of death 

 of, 439. 



Elections during 1881, 505. 



Gould, .John. Announcement of death 

 of, 87. 



Hart, Dr. H. C. Announcement of 

 death of, 14. 



Heilprin, Angelo. Delivery of introduc- 

 tory lecture, 78; Notes on the Ter- 

 tiary Geology of the Southern United 

 States, 149, 151 ; Revision of the 

 Cis-Mississippi tertiary Pectens of 

 the United States, 176, 416 ; Remarks 

 on the MoUuscan genera, Hippagus, 

 Verticordiaand Pecchiola, 415. 428 ; 

 Note on the approximate Position 

 of the Eocene Deposits of Maryland, 

 429, 444 ; Revision of the Tertiary 

 Species of Area of the Eastern and 

 Southern United States, 439, 448. 

 Report of Professor of Invertebrate 

 Palaeontology, 498. 



Hemphill, H. On the variations of 

 AcmfBa pelta E'^ch, 87. 



Henszey, W. C. Report of Treasurer, 

 502. 



He^-s, R. J. Report of Biological and 

 Microscopical Section, 490. 



Horn, Geo. H. Report of Correspond- 

 ing Secretary, 486.. 



Humphrey, Rev. Z. M. Announce- 

 ment of death of, 459. 



Index to Genera, 535. 



Jessup, A. E. Announcement of death 

 of. 162. 



Kilvington, R. Announcement of 

 death of, 415. 



Koenig, G. A. Election as Member of 

 Council, 111. 



Leidy, Jos. Rhizopods as food for 

 young fishes, 9 ; Report of Curators, 

 489. 



Lewis, H. C. Delivery of introductory 

 lecture, 78; Report of Professor of 

 Mineralogy, 499. 



Lewis, Dr. .Jas. Announcement of 

 death of. 111. 



Library, additions to, 511. 



Lockington, W. N. List of fishes col- 

 lected by Mr. W. J. Fisher, upon the 

 Coast of Lower California, 1876-77, 

 with descriptions of new Species, 89; 

 113 



Lovering, Jos. S. Announcement of 

 death of. 111. 



McCook, Rev. H. C. The Honey-Ants 

 of the Garden of the Gods, 14, 17 ; 

 The Snare of the Ray Spider, Epeira 

 Radiosa, anew form of Orb-web, 163; 

 How orb-weaving spiders make the 

 frame-work or foundations of webs, 

 430. 



Martindale, Isaac C. Election as 

 member of Finance Committee, 14. 



Meehan, Thos. Note on treeless 

 praries, 11 ; Motility in plants, 89; 

 Sexual characters in Fritillaria 



