INDEX. 
Patrons, of the Academy, list, iii., 
113; vili., 207; x., supplement; 
xv., end of 
Paulownia imperialis, 1x., 12 
tomentosa, (new), ix., 12 
Pavements of cities, vili., 41, 44 
Pearl from Shrewsbury River oyster, 
iv., 59 
Pearls, American, viii., 162, 163 
green, viii., 162 
pink, viii., 162 
Peary, Lieut., Relief Expedition for, 
xiv., 100 
Peat, Transformation of, i., 71, 76 
artificial conversion into coal, i., 
75 
Pecopteris bullatus, vii., 115 
Pecten, ii., 11 
Madisonius, ix., 88 
Pectis, viii., 77 
Pectolite, ii., 88; viii., 162; ix., 141; 
hammer, vi., 111 
Pectoralis, anomalies of, xii., 138 
Pedicularis Parryi, viii., 78 
Pegmatite, v., 222; viii., 54, 55 
Pelagiella atlantoides, xiv., 131 
Pell, Alfred, elected resident mem- 
ber xvi 147 
Pelypteris Texana, vii., 11 
Peneplains, Cretaceous and Terti- 
ary of Eastern Tennessee, xv., 
143 
Penicillium glaweum, vi., 69 
Pentremites Sampsoni, vii., 247. 
Penstemon, viii., 77 
Bridgesti, viii., 79 
glaucus var. stenophyllus, viii., 78 
unarioides, vili., 79 
Palmeri, viii., 80 
Peperino in Texas, i., 52 
Perezia nana, ix , 184 
runcinata, vil., 11 
Peridium, ix., 33 
Peridote, vili., 53-161 
Peridotite, intrusion, xiv., 86 
Periodic, errors of graduated circles, 
xili., 205 
‘Periodic law,’’ in Chemistry, v., 
183, 184 
Peristerite, viii., 162 
Perissonychia, xii., 96 
Peritricha planicola, ix., 34 
Perofskite, iii., 17 
Peronosporites, xiii., 131 
345 
Peroxide of Copper, v., 215, of Po- 
tassium and Sodium, y., 214, 
215 
of hydrogen, literature of, iii., 34 
Perpetuation of names of men of 
science, by municipal govern- 
ment of Paris, in nomenclature 
of streets, xiyv., 46 
Perpetual motion, apparatus for, 
Mabe 
Perspective, binocular, i., 9-15 
Peru, silver castings from, iii., 15, 
62, 63 
Pescadero, x., 31 
Petalostemon gracilis, vii., 9 
Peterophyllum Blasti, vii., 115 
Braunsii, vii., 115 
princeps, vii., 115 
Petrified, forest in Colorado, iii, 6, 7 
wood from California, vili., 29, 30 
from New Mexico, vili., 77 
Petrographical notes, xi., 126 
notes on Rocks, from Alaska (by 
title), xiv., 185 
notes on Rocks from Alaska, xv., 
23 
Petrography of gneisses, xii., 203 
Petroleum, ii., 43; v., 193-196 
of Colorado, viii., 25-28 
age of, vili., 25, 26 
character of, viil., 26 
origin of, vili., 26, 27 
in quartz, x., 57 
testers, 1., 1389-143 
Petromyzontide, v., 89. 
Pettigrew, Dr. David Lyman, elected 
resident member, xy., 272 
Peziza aeruginosa, X., 37 
jungermannizx, X., 37 
Pfister, J. C., elected resident mem- 
ber, xiv., 48 
Phacelia circinata, i., 8 
congesta, ix., 181 
Phacolite, viii., 54 
Phacus, ix., 33 
Phalangide of the United States, xi., 
125 
Phanerogams, new and noteworthy, 
Toe 8 
Phaseolus diversifolius, ix., 10 
helvolus, ix., 10 
umbellatus (new), ix., 10 
Phenacite, viii., 12 
Phenomena of chemistry, v., 199 
TRANSACTIONS N. Y. ACAD. ScI., Vol. XVI., Sig. 23, January 22, 1897. 
