431 



Eye, physiology of the, in regard to ac- Jeffries, B. Joy, M.D. On accommo- 

 coinmodation, 208. datiou in the eye, 208. 



F x n, Walter, elected member of 



the section of Entomology, 263. 

 Felidae, 181. 

 Felis concolor, 181. 



Ferns and fern allies from Madeira, 413. 

 Fiber zibethicus, 194. 

 Fidonia avuncularia, 395. 



bicoloraria, 83. 



Faxon ii, 83, 171. 

 Fredericella regina, 161. 

 Fulgur carica, 114. 



Gasteropoda, 182. 



Geomys bursarius, 190. 



Glacial drifts in eastern Massachusetts, 



198. 

 Glacial moraines of the Charles River 

 valley, near Watertown, note on, 277. 

 Gorytodes uncanaria, 395. 

 Grapta, two distinct, species of, 276. 

 Gyraulus deflectus, 133. 



dilatatus, 133. 



hirsutus, 134. 



parvus, 134. 



Hagen, Dr. H. On the improvement 

 of the microscope, 164; criticism of 

 Neuroptera in Dr. Packard's Guide, 

 205 ; termes, 206 ; synopsis Pseudoscor- 

 pionidum synonymica, 263. 



Halia cineraria, 392. 



marcescaria, 392. 



Harris, T. W. Manuscript vols, of, 167. 



Hastula, 121. 



Helicidae, 128. 



Helicodiscus lineata, 129. 



Hemimactra solidissima, 146. 



Hesperomys leucopus, 192. 



michiganensis, 193. 



Heterolocha Edwardsata, 383. 



Humboldt, Committee on celebrating 

 the Centennial Anniversary of the 

 birth of, 93; portrait and autograph 

 letter of, 137; scholarship, 168; schol- 

 arship, vote of thanks and acceptance 

 of fund for, 220. 



Hyalina arborea, 128. 

 electrina, 128. 



Hyatt, A. On Mr. Morse's reclassifica- 

 tion of the Brachiopods, 417. 



Hydrobiinae, 124. 



Hyla squirella, 261. 



Hypsipetes Calif orniata, 396. 

 b-fasciata, 397. 

 nubilofasciata, 398. 



obsoleta, 116. 

 Iowa, the mammals of, 178. 

 Isthmia ovata, 130. 



ventricosa, 130. 



Jackson, Dr. C. T. Native Carbonate 

 of Magnesia from Greece, California, 

 Maryland and Kansas, 172; on mete- 

 orites, 412. 



Jaculus hudsonius, 192. 



Kellia planulata, 152. 



Lacuna vincta, 125. 

 Lamellibranchiata, 139, 162. 

 Lampsilis radiata, 155. 

 Lava, a deposit of, in Arizona, 413. 

 Larentia implicata, 395. 

 Lasiurus cinereus, 187. 



noveboracensis, 187. 

 Lectures on Entomology, 277. 

 Ledidas, 158. 



Lepidoptera, American. Pt. I. Geomet- 

 ridaa, 83. 

 Pt. II. Fhalsc- 

 nidas, 109. 

 Lepidoptera from Milford, N. H., 416. 

 Leporidas, 194. 

 Lepus Callotis, 88. 



palustris, observations on the, 86. 

 sylvaticus, 87, 194. 

 Letters received during the year ending 

 April 30, 1869, 32; the year ending 

 April 30. 1870, 329. 

 Leucochila armifera, 130. 

 pentodon, 130. 

 Levicardium Mortoni, 150. 

 Library, additions to, during the year 

 ending April 30, 1869, 36; April 30, 

 1870, 334. 

 Limax agrestis, 130. 



campestHs, 130. 

 flavus, 130. 

 Lemenitis Proserpina, Description of 



the male of, by C. P. Whitney, 85. 

 Limnaeidaa, 132. 



Lingula, in the Feejee islands, 417. 

 Liocyma Beckii, 257. 



fluctuosa, 256. 

 Littorina irrorata, 125. 

 palliata, 125. 

 rudis, 125. 

 Loligo punctata, 111. 

 Lunatia heros, 118. 

 Lunatia triseriata, 118. 

 Lutra canadensis, 183. 

 Lymnophysa desidiosa, 132. 

 umbrosa, 132. 

 Lynx rufus, 181. 

 Lyonsia hyalina, 143. 



Maack, G. A. Geological sketch of the 

 Argentine Republic, 417. 



Macaria Califomiaria, 392. 



Macoma fusca, 145. 



Mactridae, 146. 



Magnesia, native carbonate of, 172. 



Malacoclemmys palustris, 260. 



Maxn, B. P. Carabus Chamissonis, 207. 



Margaritana undulata, 155. 



Martesia cuneiformis, 140. 



Massachusetts, on the system in the 

 physical features of, 414. 



Maynard, C. F. Capture by, of three 

 specimens of the rare Tennessee warb- 

 ler in Newton, 3Iass., 93. 



Meeting, Annual, 1,307. 



