WEEKS.] 
PETROLOGY, AND MINERALOGY FOR 1892-1900. 
91 
Economic geology — Continued. 
Products described— Continued. 
Road material, Clark, O'Harra, Rowe, and 
Ries, 920. 
Road material, Cushing, 1248. 
Road material, Leonard, 3464. 
Road material, Lincoln, 3512. 
Road material, Marbut, 3646. 
Road material, Morris, 4045. 
Road material, Ries, 4622. 
Road material, Salisbury and Knapp, 4773. 
Road material, Shepard, 4946. 
Road material, Tilton and Bain, 5396. 
Road material, Whittle, 6124. 
Road materials, Bain, 171, 172, 179. 
Road materials, Beyer, 438. 
Road materials, Calvin, 699. 
Road materials, Hayes, 2417. 
Road materials, Holmes and Cain, 2718a. 
Road materials, Lane, 3400. 
Road materials, Lonsdale, 3567. 
Road materials, McCalley, 3815, 3818. 
Road materials, Merrill, 3934. 
Road materials, Shaler, 4922, 492:'.. 
Salt, Bishop, 447. 
Salt, Crawford, 1144. 
Salt, Haworth, 2373. 
Salt, Hay, 2393. 
Salt, Hubbard, 2797. 
Salt, Kennedy, 3027. 
Salt, Lane, 3400. 
Salt, Lucas, 3580, 3581. 
Salt, Luther, 3600, 3602, 3603. 
Salt, Preston, 4464. 
Salt, Romeyn, 4662. 
Salt, Veatch, 5746. 
Salt, Ward, 5861. 
Sandstone, Day, 1466. 
Sapphire, Weed, 5946. 
Shale, Lane, 3400. 
Shale, Ries, 4636, 4637. 
Siliceous dolomite, McCalley, 3818. 
Silver, Andersen, 111. 
. Silver, Austin, 133. 
Silver, Barlow, 253. 
Silver, Barrell, 258, 259. 
Silver, Beadle, 326. 
Silver, Bell, 412. 
Silver, Blake, 483a. 
Silver, Blandy, 487. 
Silver, Blauvelt, 497. 
Silver, Brewer, 576, 577, 587. 
Silver, Brock, 611. 
Silver, Brown, 634. 
Silver, Buelna, 661. 
Silver, Burdsal, 663. 
Silver, Carlyle, 750, 751, 752, 753. 
Silver, Clark, 890. 
Silver, Clark, E., 889. 
Silver, Comstock, 1062. 
Silver, Corning, 1105. 
Silver, Crawford, 1144, 1145. 
Silver, Dewar, 1488. 
Silver, Diller, 1513. 
Silver, Draper, 1540. 
Silver, Eldridge, 1625. 
Silver, Emmons, 1686, 1698, 1699, 1705, 1706, 170S, 
1712. 
Economic geology— Continued. 
Products described— Continued. 
Silver, Emmons and Tower, 1711. 
Silver, Fairbanks, 1755, 1762. 
Silver, Farish, 1791. 
Silver, Fechet, 1804. 
Silver, Fenner, 1810. 
Silver, Fowler, 1881, 1882. 
Silver, Furman, 1932. 
Silver, Grant, 2135. 
Silver, Gratacap, 2151. 
Silver, Gwillim, 2226, 2228. 
Silver, Gwillim and Johnson, 2227. 
Silver, Halse, 2280. 
Silver, Hardman, 2286, 2288. 
Silver, Herrick, 2457. 
Silver, Hoffman, 2657. 
Silver, Joseph, 2944. 
Silver, Kendall, 3024. 
Silver, Keyes, 3088. 
Silver, Kirby, 3186. 
Silver, Kunz, 3299. 
Silver, Lakes, 3305, 3310, 3320, 3331, 3333, 3338. 
Silver, Lammers, 3378. 
Silver, Lavagnino, 3405. 
Silver, Lee, 3437. 
Silver, Lindgren, 3523, 3548. 
Silver, McCormick, 3841. 
Silver, MacMechen, 3629. 
Silver, McKellar, 3884. 
Silver, Nason, 4071. 
Silver, Ordonez, 4119. 
Silver, Penrose, 4346. 
Silver, Petre, 4362. 
Silver, Porter, 4418, 4419. 
Silver, Posepny, 4421. 
Silver, Purington, 4511, 4512, 4513. 
silver. Rickard, 4590, 4602. 
Silver, Spurr, 5171, 5175. 
Silver, Storms, 5260, 5261. 
Silver, Streernwitz, 5272. 
Silver, Todd, 5407. 
Silver, Tower, 51 16. 
Silver, Tower and Smith, 5445. 
Silver, Van Diest, 5676. 
Silver, Warren, 5868. 
Silver, Weed, 5934, 5945, 5946, 5953. 
Silver, Weed and Pirsson, 5935, 5939. 
Silver, Wiltsee, 6274. 
Silver, Wynkoop, 6531. 
Slate, Beyer, 433. 
Slate, Day, 1466. 
Slate, Merriman, 3970. 
Soda, Blake, 477. 
Soda, Chatard, 877a. 
Soda, Crawford, 1144. 
Soda, Knapp, 3197. 
Soda, Knight, 3210. 
Sodium, Packard, 4233. 
Sodium carbonate, Knapp, 3198. 
Soil, Bain, 172. 
Soil, Beyer, 432. 
Soil, Calvin, 699. 
Soil, Campbell, 729. 
Soil, Darton, 1315. 
Soil, Darton and Taff , 1318. 
Soil, Hawoi th, 2364. 
