IXDEX. 



jMembers deceased (continued) 

 !McCook. Henry C, xiv 

 March, James Andrew, xiv 

 !\Ieyer, A. B., xiv 

 Oliver, Charles A., v 

 Pemberton, Henry, v 

 Scudder, Samuel Hubbard, xiv 

 Stoney, G. Johnstone, xiv 

 Thompson, Heber S., v 

 Tilghman, Benjamin Chew, v 

 Van't Hoff, Jakob Heinrich, iv 

 Whitman, Charles Otis, Hi 

 Members elected, ix, x 



, presented, z'l, xii 



Membership accepted, xiii 



Miller, totality of substitutions on ;; 



letters, 139, zi 

 ^Molecules, gaseous, in tail of Halley's 



comet, repulsion of, z'ii 

 ]\Ioreau de Saint Mery and his 

 French friends in the A. P. S.. 168, 

 z-i 

 Mountain ranges, isostasy and. 444 

 !Munro, rise in cost of living in 



twelfth century, 497. v 

 iMunroe. census of chemical in- 

 dustries, X 



, investigation of explosives at 



Pittsburgh Testing Station, Hi 



N 



11 letters, totality of substitutions on, 



139. c't 

 Navigation, steam, a century of, v 

 Nervous system, origin and signifi- 

 cance of primitive, 217, ix 

 Nipher, disruptive discharges of elec- 

 tricity through flames, 397, ix 



, an optical phenomenon, 316, ix 



Nolineae, desert group, 405, zii 

 Noyes, properties of salt solutions in 

 relation to ionic theory, x 







Obituarj- notice of George Frederick 



Barker, xiii 



Henry Charles Lea, iii 



Jacobus Henricus Van't 



Hoff, iii, xii 

 Officers and Council, election of. Hi, 



iz' 

 Olivier, 175 parabolic orbits and other 



results deduced from over 6,200 



meteors, rii 

 Orbits, 175 parabolic, deduced from 



over 6.200 meteors, z'it 

 Ovary, cyclic changes in mammalian. 



228, xi 



Parker, origin and significance of 



primitive nervous system, 217, ix 

 Petrology, problems in. 286, z'iii 

 Phylogenetic association in relation 



to the emotions, x 

 Physicians, Elizabethan, v 

 Phytosaur from the Triassic of 



Pennsylvania, z'iii 

 Porpoises of the family Delphinidse, 



xi 

 Portrait of Thomas Hopkinson, xi 



Henr}- C. Lea, xxxvii 



Isaac Lea. xxxix 



R 



Radiation, solar constants of, vii 



Radioactivity, 333 



Reid, relation of isostasy to elevation 

 of mountains, 444, z'iii 



, the transpiration of air through 



a partition of water, z'iii 



Religion of Sikhs, xi 



Richardson, dynamical effects of ag- 

 gregates of electrons, 347, xii 



Robinson, the new history, 179, xi 



Rocky Mountains in Colorado, front 

 range of the. z'Hi 



Rosengarten, IMoreau de Saint Alery, 

 and his French friends in the A. 

 P. S., 168. vi 



Rotch, extension of our knowledge 

 of the atmosphere, zii 



Royal Frederick University Centen- 

 nial, invitation to, iv 



Rush. William, the first American 

 sculptor, xiii 



Schelling, Elizabethan physicians, z^ 



Scott, mammals, past and present of 

 the Western hemisphere, iv 



, a new phytosaur from triassac 



of Pennsylvania, viii 



Sea water, influence of, on distribu- 

 tion of plants, 457 



See. extension of solar system beyond 

 Neptune. 266, vii 



, the new cosmogony, 261, z'ii 



. secular effects of increase of 



sun's mass. 269, z'ii 



Several bodies, generalizations of 

 problem of, vi 



Shore and off-shore deposits of 

 Silurian age in Penna., ziii 



Silurian age in Pennsylvania, shore 

 and off-shore deposits of, viii 



Sinclair, tertiary formations of north- 

 western Wyoming, znii 



