GENERAL INDEX. 



301 



PACK 



North America, cretaceous 



flora of 133-137 



North Atlantic Ocean, age of, 



77-79 



Norwegium 200 



Notes, chemical 200-202 



geological, etc 215-223 



mineralogical 223 



on local mineralogy. 121 



on minerals from the West, 



213-214 

 Notice of fossil fishes (title).. . . 281 



Obelisk, preservation by paraf- 



fine 56, 63-71 



Observatories (astronomical), 



260-261 



time service for 158-162 



Obsidian in rhyolite 214 



Occurrence of a large marine 



vertebrate, etc 165-168 



Ochre 217 



Officers, election of 165 



reports of, Corres. Sec'y . . 162 



Record. Sec'y 29, 162 



Librarian 1,20,164 



Treasurer 163 



Oligoclase. from New York 



Island 75, 223 



Oneida conglomerate 216 



Oolites . 62 



Ores in San Juan Mts 122. 128 



Organic chemistry, discoveries 



in 193-198 



progress in 193-198 



Origin of alphabet 81-88 



Origin of rock strata 78-79 



Oxalic acid, produced by fungi, 



114. 118 



Oxidation of galena 130 



Oxygen 185-188, 214 



boiling point of 191 



in the sun 243 



liquefaction of 190-191 



manufacture of 192 



Ozone 185 



by oxidation 119 



Page Valley, Va. 216-217 



Painting, mural in Yucatan. . 175 

 Palaeozoic rocks, in America. 



78-79 



strata 216 



Palisades 230 



Palms, from Vancouver's I'd. 138 



TAGE 



Paper vvlieels, railway 152 



Paraffine 194 



appHcation on building 



materials 56-71 



group 196 



Parallax of stars 259 



of sun 238-239 



Pegmatite 223 



" Periodic law " in chemistry, 



183-184 



Peroxide of copper 215 



of K and Na 214-215 



Petroleum 193-194 



Phenomena of chemistry. . . . 199 



Phiiippium 200 



Phosphorescence of marine an- 

 imals. . 14-16 



Phosphorescent infusorian. .15-16 



Phosphorus 186, 187 



Photographs, of stars 257 



of sun 241,246 



Photography 248 



Photosphere of sun 242 



Physics, relation with chem- 

 istry 189-190 



Physiological chemistry 198 



Physiology, appUcation of 



chemistry to 198 



Piperidine 195, 197 



Placoderni fislies, in Uevonion 



of Oliio 25 



Planets..: 247-253 



inferior 247 



intra-Mercurial 247 



major 251 



Mercury 248 



Venus 248 



Mars 249-250 



asteroids 250 



Jupiter 251 



Uranus 252, 253 



Neptune 253 



Saturn 251 



ultra-Neptunian 253 



Plants, fossil, cretaceous, 133-137 



from Stnten Island 28-29 



Plants, in siliceous soil 217 



Platinum 185, 187 



Porphyry, in Colorado, 



122, 124, 126, 127 

 Post, Dr. A. C. death of . . . 280 



Potassium 187 



chlorate of 215 



liydroxideof 193 



peroxide of 214-215 



