CONTENTS. 



EvERMANN, B. W., and Seth E. Meek. A Review of the Species of Gerres 



Found in Amevican Waters (Conclusion), . ... . . .121 



FouLKE, S. G. Observations on Actinospbaerium Eicbornii, . . .125 

 Allen, Harrison, M. D. Cutaneous Nerves in Mammals, . . .127 



Lewis, Graceanna. On tbe Genus Hyliota, 128 



McCooK, Rev. H. C. Note on tbe Intelligence of tbe American Turret 



Spider, ^^^ 



Cope, E. D. Tbe Fisbes of tbe Batsto River, N. J., .... 132 



Cope, E. D. On tbe Fishes of tbe Recent and Pliocene Lakes of tbe 



Western Part of the Great Basin and of the Idaho Pliocene Lake, . 134 

 Cope, E. D. On Some Fossils of tbe Puerco Formation, . . . .168 

 Stearns, R. E. C. Description of a New Hydrobiinoid Gasteropod from 



tbe Mountain Lakes of tbe Sierra Nevada, with Remarks on Allied 



Species and the Physiograpbical Features of said Region, . . 171 



OsBORN, Henry F. Preliminary Observation upon tbe Brain of Ampbi- 



uma (Plate VIII), ^^^ 



Meehan, Thomas. Some Evidences of Great Modern Geological Changes 



in Alaska, ^^"^ 



Meehan, Thomas. Exudation from Flowers in Relation to Honey-Dew, 190 

 Meehan, Thomas. Initability in tbe Flowers of Centaureas and Thistles, 192 



Meehan, Thomas. Notes on the Sequoia gigautea, 193 



McC'ooK, Rev. H. C. Restoration of Limbs in Tarantula, . . .196 



Heii.prin, Angelo. The Synchronism of Geological Formations, . .197 



Meehan, Thomas. Longevity of Trees, 200 



Leidy, Jos., M. D. Mineralogical Notes, 202 



Leidy, Jos., M. D. ManayunkiaSpeciosa (Plate IX !, . . . .204 

 Heilprin, Angelo. Note on a Collection of Fossils from the Hamilton 



Group, of Pike Co., Pa., 213 



Sharp, Benj., M. D. On tbe Anatomy of Ancylus fluviatilis O. F. Miiller 



and Ancyluslacustris Geoflfroy (Plate X), 214 



Rand, Theo. D. Notes on tbe Geology of Chester Valley and Vicinity, . 241 

 Sharp, Benj., M. D. (^n Visual Organs iu Solen 248 



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