INDEX. 



479 



PAGE 



Podabrus simplex 6 2 



Polydroms ? elegans go 



Polyzoa, in the Post-Pliocene gg 



Porifera, in the Post-Pliocene g^ 



Portland Nat. Hist. Society — Proceedings of 70 



Post-Pliocene Deposits — Dr Dawson on gl 



Potato — On the Origin of the 34 



Pteropoda, in the Trenton Limestone 313 



Quebec Group — Prof. Hall on the Graptolites of the 42 



Receptaculites — Billings on the Genus Ig4 



Eocky Mountains — Dr. C beadle's Narrative g5 



Rossie — Sketch of the Geology of 267 



Rumford, Count — His Researches on Heat 152 



Salter, J. W. — On the Lingula Flags 45 g 



Sanguinaria Canadensis 430 



Scudder, S. H.— On Fossil Insects found in the Devonian 234 



Scomber vernalis 13Q 



Sebastes Norvegicus ,,q 



Shells in the Post-Pliocene Deposit gl 



Silkworm — A New American % t 239 



Silurian Fossils — Billings on lg^ 



Solarium tuberosum 34 



Stenopora bulbosa 409 



Stimpson, Dr. — Review of the Northern Buccinums.' 364 



Sullivant, Dr. — Icones Muscorum of 72 



Surnia ulula 53 



Starfish — Agassiz on > 472 



" — Verrill on the preservation of. 473 



Tehphorus armiger g2 



Thomas, Dr. — Catalogue of Plants by 79 240 



Thynnus vulgaris < 132 



Turnip — On the Origin of the 40 



Yennor, H. G. — On the Night-Heron 53 



Verrill, A. E.— How to preserve Starfish 473 



Waters, Natural — Dr. Hunt on the Chemistry of 1 161 276 



Whiteaves, J. F.— On the Fossils of the Trenton Limestone 312 



Woodsia — Eaton on the Genus 89 



Woodsia glabella 90 401 



Woodsia (hyperborea) alpina 90 401 



Woodsia Ilvensis , 90 400 



Woodsia obtusa Torrey 92 



