WEEKS.] 
PETROLOGY, AND MINERALOGY FOR 1892-1900. 
133 
Mineralogy— Continued. 
Condensed titles of papers— Continued. 
Occurence of cubanite, Winchell, 6288. 
Occurrence of leadhillite pseudomorphs, 
Foote, 1563. 
Occurrence of native copper Wolff, 6413. 
Occurrence of poly erase, Hoffmann, 2663. 
Occurrence of quenstedtite, Kuntze, 3287. 
Occurrence of rhodocroite, Pearce, 4279. 
Occurrence of roscoelite, Turner, 5482. 
Occurrence of ruby, Judd and Hidden, 2945. 
Occurrence of selenium, Pearce, 4280. 
Occurrence of sperrylite, Hidden, 2514. 
Occurrence of tellurium, Pearce, 4278a. 
Occurrence of thaumasite, Penfield and Pratt, 
4313. 
Occurrence of tourmaline, Orcutt, 4137. 
Occurrence of vanadiun and molybdenum, 
Hillebrand, 2579. 
Occurrence of xenotime, Hoffmann, 2661. 
Occurrence, origin, and composition of cb.ro- 
mite, Pratt, 4445. 
On a blue mineral, supposed to be ultrama- 
rine, Packard, 4236. 
On anew alkali mineral, Foote, 1864, 1865. 
On a recent diamond find in Wisconsin, 
Hobbs, 2639. 
On bixbyile, Penfield and Foote, 4315. 
On clinohedrite, Penfield and Foote, 4320. 
On hardystonite, Wolff, 6416, 6117. 
On lawsonite from California, Ransome, 4534. 
On northupite, pirssonite, gaylussite, and 
hanksite, Pratt, 1447. 
Onpeareeite, Penfield, 1311,4319. 
On pollucite, manganocolumbite, and micro- 
lite, Foote. 1857. 
On rhodolite, Hidden and Pratt, 2515. 
On two meteorites, Howell, 2790. 
on wellsite, Pratl and Foote, 1 137 
Optical characters of jacksonite, Winchell, 
6366. 
Optical characters of vertical /.one of amphi- 
boles and pyroxenes, Daly, 1284. 
Optical constantsof the Schefferite, Melczer, 
3899. 
Optical mineralogy, Luquer, 3597. 
Oredepositsat Franklin Furnace, N. . I., Kemp, 
2982. 
Origin of corundum, Pratt, 4440. 
Origin of grahamite, White, 6062. 
Orthoclase as gangue mineral, Lindgren, 
3541. 
Paramelaconite and footeite, Koenig, 3266. 
Peculiar mineral transformations, Emerson, 
1672. 
Penfieldite, a new species, Genth, 1967. 
I'entlandite, Penfield, 4302. 
Phosphoresence in wollastonite, Hillebrand, 
2577. 
Phosphoric acid, minerals containing 1 per 
cent of, Phillips, 4369. 
Physical properties of topaz, Penfield and 
Minor, 4309 
Piedmontite and scheelite, Williams, G. H., 
6157. 
Platinum and iridium in meteoric iron, Davi- 
son, 1412. 
Plattnerite, Yeates, 6533. 
Mineralogy— Continued. 
Condensed titles of papers— Continued. 
Plymouth meteorite, Indiana, Ward, H. A., 
5836. 
Polybasite and tennantite, Penfield and 
Pearce, 4298. 
Powellite, Koenig and Hubbard, 3267. 
Powellite crystals, Palache, 4243. 
Precious stones, Kunz, 3290, 3295. 
Precious stones, Miers, 3983. 
Precious stones and gem materials of the 
Pacific coast States, Maguire, 3634. 
Psuedomorphs, Smyth, 5089. 
Psuedomorphs from Taconic region, Hobbs, 
2630. 
Ptilolite, Cross and Eakins, 1180. 
Ptilolite and mordenite, Clarke, F. W., 922. 
Quartz and other minerals, Meyer, 3976. 
Quartz from Emerald and Hiddenite mine, 
Miers, 3982. 
Report of section of chemistry and miner- 
alogy, Hoffmann, 2659. 
Report on chemistry and mineralogy, Hoff- 
mann, 2660. 
Rock containing a new soda amphibole, Pa- 
lache, 4241. 
Ro< k-formillg biotites and amphiboles, Tur- 
ner, 5481. 
Rocks and minerals from California, Turner, 
5473. 
Rowlandite, Hidden and Hillebrand, 2513. 
Rubellite and lepidolite, Fairbanks, 1740. 
San AngelO meteorite, Preston, litis. 
Sapphires, from Montana, Kunz, 3296. 
Satin spar from Dubuque, Leonard, 3457. 
Selenite, occurrence of, Talmage, 5296. 
Sepiolite, Helmhaeker, 2452. 
Siliceous calcites from the Had Lands, South 
Dakota, Penfield and Ford, 4327. 
Smith ville meteoric iron, Huntington, 2811. 
Sperrylite, Walker, 5824. 
Sphalerite crystals of a peculiar habit and 
with one new form, from Galena, Kansas, 
Rogers, tt>M. 
Stannite and its alteration products, Headden, 
2441. 
Summary of progress in mineralogy and pe- 
trography, Bayley, 311. 
Tables for the determination of the common 
or economically important minerals, Moses, 
4041. 
Telluride ore, Pearce, 4282. 
Tellurides from Colorado, Palache, 4245. 
Tellurium in an oxidized form, Pearce, 4275. 
Text-book of important minerals and rocks, 
Tillman, 5387. 
Text-book of mineralogy, Dana, 1288. 
Thalite and bowlingite, Winchell, 6363. 
The Arlington iron, Winchell, 6323. 
The bauxites, Laur, 3404. 
Thomsonite and lintonite, Winchell, 6346. 
Thomsonite, mesolite, and chabazite from 
Golden, Colorado, Patton, 4261. 
Tin minerals, new, Ulke, 5529. 
Topaz crystals, Eakle, 1588. 
Topaz crystals, Jones, A J., 2928. 
Topaz from Texas, Kunz, 3292. 
Tourmaline schists from Colorado, Patton, 
4260. 
