PROCEEDINGS. VOLS. 1-50 



PEALE-PERSON 



Peale, Franklin, antique stone hand- 

 liammer, 9, 401. 



coinage, on the process of pre- 

 paring and reproducing dies for, 

 and medalic purposes, 6, 95, 106. 



Delaware Water Gap, sound- 

 ings at the, 9, 451. 



gum-elastic goods, manufacture 



of 4, 221. 



Indian stone implements, North 



American, 8, 265. 



-man, prehistoric, and his imple- 

 ments, 7, 411. 



— ■ — -obituary notice of, 11, 597. 



, of }klatthias W. Baldwin, 



10, 279. 



. of Samuel Moore, 8, 53. 



pottery of Illinois, ancient, 9, 



240. 



, — of Stone Age, 10, 243, 430. 



skater's reel, 6, 179. 



valves, new form of, 6, 243. 



Peat, American condensed, 16, 656. 



— deposits, phenomena of, 50, 161. 



— and lignite. Arkansas, 20, 225. 

 Peckham, S. F., bitumens, genesis of. 



10, 445; 37. 108. 



petroleum, 36, 103. 



Peirce, Benjamin, Erman's orbits of 

 the periodical meteors, 2, 21. 



^ perturbations of Uranus by 



Neptune, 5. i5- 



Peirce C. Newlin. obituary notice of 



"William G. A. Bonwill. Memorial 

 Volume, I, 206. 



Penn's commission for the govern- 

 ment of Pennsylvania during his 

 first visit to England. 38, 4. 



Pennington. Mary E. and Edgar F. 

 Smith, tungsten, the atomic mass 

 of, 33, Z2>^- 



Pennsylvania, bi-centennial of the 

 founding of, 20, 497. 



— forests, present condition and 

 future prospect of, 33, 153. 



— geology of southwest, 18, 289. 



Pennsylvania (continued). 



— German dialect, grammatic notes 

 and vocabulary of the, 26, 187. 



— great trap dyke across southeast- 

 ern, 22, 438. 



— launch of the ship, 3, 103. 



— -laws of province of, in original 

 ms. in possession of the Society, 

 36, 176. 



— lignite, 9, 463. 



— oil region, 10, 109. 



— Second Geological Survey of, 16, 

 55: 20, 537; 22, 86. 



— social and intellectual state of the 

 Colony of, prior to 1743, 3, 119; 

 Trans. Hist, and Lit. Comm., 3, 41. 



— terminal moraine in, 20, 662. 

 Penrose, Richard Alexander Fuller- 

 ton, obituary notice of, 48, Iviii. 



Pensilfani, Gshicht fun da al'ta tsai'- 

 ta in, 32, 325. 



Pepper, Edward, eucalyptus in Al- 

 geria and Tunisia, 35, 39. 



Pepper, William, memorial meeting 

 in honor of, Memorial Volume, i, 



133- 



— ■ — -obituary notice of James Cop- 

 land. II, 525. 



. of John Forsyth Meigs, 



21, 266. 



Rontgen ray, remarks on, 35, 34. 



and Mears, Keen and Allen, 



universal hyperostosis associated 

 with osteoporosis, 12, 19. 



Perch, etheostomine, 11, 261. 



Pericles and Apollonius of Tyre, 37, 

 206. 



Periptychus, brain of, 20, 563. 



Perissodactyla. systematic arrange- 

 ment of the order, 19, 2)77- 



Perissodactyles, new, from the Bred- 

 ger Eocene, 13, 35. 



Permian formation of Texas, his- 

 tory of the, 19, 38; 20, 447, 628. 



Perry County faults, 21, 218. 



Personal equation, 34, 337. 



61 



