INDEX. 413 



Page. 



Pisciculture illustrated at the Ccntcuuial G6 



Pilchcr, Eev. Dr., fouud perforated skull 241 



Planetary inotiou, integrals of, by Prof. Siniou Newcomb 12 



Planets, chemical coustitutiou of the 180 



Plaiitamour, Prof. Eniile 105 



obscrvatious by 1G7, 168 



Plaster casts 41, 42,03,64, G5 



Playfair, philosophy of 186 



Pliny , 115,122,125 



Plumner, Sumner J. , salmon from 77 



Poey, Dr. Felipe, distributes exchanges 23 



Sarothrodus amplexicollis from 84 



Poggeudorff, M 165 



Aunalen 203 



Polaris expedition, scientific results of 45 



Polarization, M. Soret on 106 



Pole, labors of 221 



Pomeroy, Mrs. Mary H., Indian clothing from 84 



Potter, ElihuH., eel from 84 



Pourtal(5s, Louis de, assisted in purchase of Agassiz's collections 160 



Powell, Samuel, stone ax, fishes, &c., from 84 



collections from 47 



Powell, Prof. J. W., explorations by 17, 18, 52 



collections from 48, 49, 55, 67, 84 



Powers, Stephen, collections from 67, 68, 84 



Precipitation, influence of forests on 193, 200 



Ebermayer on 202 



(5ee Rain-fall.) 



Prehistoric times 55, 285, 302, 308, :512, 306, 371 



Pressure of the atmosphere, work on, contemplated 26 



connection between wind and 22 



Prestwich, Joseph, lecture by 175 



Prevost, Alexander 151 



Prevost, Dr., relative to cerebral system 173, 174 



Price, Henry M., amethystine quartz from 84 



Prillieux, M., observations of , 173 



Prin, Trowand & Co., reduced rates of freight 27 



Prior, William, jr., & Co., specimens from 84 



Providence, R. I., Brown University, skin of fish from 84 



Przedziecki, Count A., member of committep on symbols for archjBological 



charts 221 



Pruni(5ros, Dr., on neolithic skulls of theLoztire 212,243 



Publications, classification of 11 



rules for distribution of 12 



received in 1875 34 



expenses 107 



Publishers, Paris, publications from 35 



Pulsif er, Sidney, stone axes and pottery from 84 



Putnam, F. W., on pestles 359 



Pybas, Ben., stono implements and coal-plant from 85 



I'y thagoras 125 



Quail, William, moths from 85 



Quetclet, eulogy on, by Mailly 18 



Jacques, Adolpho, Lambert 151, 164 



Race, human, the i)robable future of the 142 



