593 
Ice-sheets, quaternary, 450. 
Ichnology, recent progress in, 117. 
Ichthyura, 558. 
inclusa, partial life-history of, 
516. 
strigosa, 496. 
Illasnus ambiguus, 267. 
barriensis, 268. 
daytonensis, 268, 344. 
insignis, 268. 
ioxus, 268, 347. 
Implement, chipped, from Indiana, 150. 
Implements, paleolithic, 157. 
Indian pot holes, 218. 
Isocampe strata, 119. 
Janassa, 512, 559. 
lignicolor, life-history of, 542. 
Jassus, 570. 
J uncus, 186. 
Kneeland, Samuel, obituary notice of, 
38. 
Kuhnia eupatorioides, 187. 
Lacerta, 472. 
Lachesis mutus, 178. 
Lachnus, 568. 
Lacuna neritoidea, 133. 
Laelia ccenosa, 497. 
Lagunculipes latus, 119. 
Lane, Alfred C. The geology of Na- 
hant, 91. 
Lathrobium, 468. 
Lathyrus, 184, 185, 186. 
Leiocampa, 560. 
Leioptilus sericidactylus, 496. 
Lepidium, 184. 
Leptaena area, 296. 
depressa, 298. 
glabra, 294. 
prolongata, 297. 
quadrilatera, 298. 
quinque-costata, 295. 
sericea, 294. 
tenera, 296. 
transversalis, 293. 
Leptasterias, 109. 
Leptoccelia hemispherica, 325, 347. 
Leptonyx lateralis, 118. 
Lespedeza capitata, 185. 
Leucania, 510. 
Leverett, Frank. Changes of climate 
indicated by interglacial beds and 
attendant oxidation and leaching, 
455; glacial studies bearing on the 
antiquity of man, 585. 
Lias, evolution of the faunas of the lower, 
17. 
Lichas boltoni, 272. 
Lichenalia concentrica, 332. 
Linum, 190. 
Lithecphora, 567. 
Lochmaeus manteo, 559; life-history of, 
546. 
Lophodonta, 511, 558. 
Lophopteryx carmelita, 560. 
cucullina, 559. 
Loricera, 468. 
Loxonema subulata, 291. 
Lunatia heros, 133. 
Lunula obscura, 119. ' 
Lupinus argenteus, 185. 
Lyellia, 335. 
Lytoceratidae, 27. 
PROCEEDINGS B. S. N. H. VOL. XXIV. 
Macropterna divaricans, 119. 
gracilipes. 119. 
vulgaris, 119. 
Macropus, 475. 
Mactra solidissima, 133. 
Malvastrum coccineum, 186. 
Mamestra, 494. 
Man, early, in the Delaware valley, 141, 
468, 469; glacial studies bearing on 
the antiquity of, 585. 
Marcou, Jules. Canadian geological 
classification for the Province of 
Quebec, 54, 357; on some dates of 
the Report on the geology of Ver- 
mont, 83. 
Medusas, method of defence among, 200. 
Meetings. See Table of contents. 
Melampsora epilobii, 190. 
lini, 190. 
populina, 190. 
salicina, 190. 
Members, Associate, elected : 
Allen, Nathaniel, 459. 
Beals, W., 16. 
Beamans, G. W., 16. 
Beamans, Mrs. G. YV., 16. 
Bowditch, Charles P., 459. 
Bumpus. C. P., 459. 
Clarke, J. E., 459. 
Davis, YValter R., 261. 
Flagg, John S., 580. 
Fuller, Mrs. Sarah S., 208. 
Gardner, J. L., jr., 16. 
Hopkins, Mrs. Louisa, 16. 
Humphrey. J. E., 261. 
Hunnewell, II. S., 459. 
Kennedy, Harris, 459. 
Ladd, George E., 16. 
Lincoln, D. F., 16. 
McMurrich, J. Playfair, 459. 
Maynard, C. J., 580. 
Merrill, Selah, 580. 
Newell, F. H., 16. 
Platt, Miss Julia B., 459. 
Ramsay, Mrs. Charles H.,»580. 
Rich, H. L„ 459. 
Richards, Miss Harriet E., 208. 
Saville, C. M., 16. 
Saville, Marshall H., 459. 
Sharp, John C., jr., 208. 
Sheldon, W. E., 580. 
Snyder, YV. H., 16. 
Thompson, John A., 580. 
Topliff, George F., 580. 
Wilson, H. V., 580. 
Members. Corporate, elected : 
Barrows, W. B., 16. 
Boardman, Miss E. D., 16. 
Boyden, A. C., 16. 
Brooks, Henry, 16. 
Dame, L. L., 16. 
Puffer, L. W., 16. 
Sewall. Lucy E., 16. 
Tarr, R. S., 16. 
Menispermum canadense, 191. 
Mentha, 188. 
Mesothyra, 213. 
Microdonta, 559. 
Micropteryx caltella, 507. 
Microsphaera alni, 185. 
diffusa, 185. 
ravenelii, 185. 
symphoricarpi, 185. 
Miris, 575. 
Models of animals, 45. 
Modiola modiolus, 133. 
Monarda fistulosa, 188. 
38 SEPTEMBER, 1890. 
