weeks] PETROLOGY, AND MINERALOGY FOR 1892-1900. 
47 
Chemical analyses — Continued. 
Diabase, Turner, 5472. 
Diabase, Washington, 5876,6877. 
Diabase, Watson, 5889, 5891. 
Diabase-porphyry, Turner, 5465. 
Diallage, Clarke and Hillebrand, 926. 
Diallage, Diller, 1507. 
Diallage-gabbro, Clarke and Hillebrand, 925. 
Dike rock, Hovey, 2770. 
Dike rock, Palmer and Stoddard, 4246. 
Diopside, Clarke and Hillebrand, 925. 
Diopside, Cross, 1196. 
Diopside, Diller, 1507. 
Diopside, Lord, 3574. 
Diorite, Becker, 345. 
Djprite, Clarke and Hillebrand, 925. 
Diorite, Clements and Smyth, 1017. 
Diorite, Diller, 1507. 
Diorite, Iddings, 2845. 
Diorite, Kemp, 2993. 
Diorite, Lindgren, 3531. 
Diorite, Merrill, 3955. 
Diorite, Pirsson, 4408. 
Diorite, Purington, 4512. 
Diorite, Turner, 5465. 
Diorite, Washington, 5874,5877. 
Diorite, Watson, 5891. 
Diorite-monzonite, Cross, 1201. 
Dioritc-porphyry, Cross and Spencer, 1206. 
Dolerite, Clarke and Hillebrand, 925. 
Dolerite, Diller, 1507. 
Dolerite, Emmons, Cross, and Eldridge, 1707. 
Doleritic basalt, Turner, 5465. 
Dolomite, Clarke and Hillebrand, 925. 
Dolomite, Winslow, Haworth, and Nason, 
6397. 
Dunite, Clarke and Hillebrand, 925. 
Dunite, Martin, 3730. 
Elacolite-gneiss, Merrill, 3955. 
Elaeolite-syenite, Clarke and Hillebrand, 925. 
Elaeolite-syenite, Cushing, L244. 
Enargite, Hillebrand, 2581,2585. 
Enstatite, Clarke and Hillebrand, 925. 
Enstatite, Lev is, 3507,3508. 
Enstatite, Pratt, 4436,4439. 
Enstatite-diabase porphyry, Lord, 3571. 
Epidiorite, Turner, 5472. 
Epidote, Forbes, 1870. 
Epidote, Hillebrand, 2585. 
Epidotic rock, Bascom, 276. 
Erinite, Tower and Smith, 5445. 
Erionite, Eakle, 1586. 
Essexite, Washington, 5874,5877. 
Fayalite, Penfieldand Forbes, 4312. 
Feldspar, Diller, 1507. 
Feldspar, Hopkins, '2717. 
Feldspar, Luquerand Hies, 3598. 
Feldspar, Winehell, 6277. 
Felsite, Bascom, 276. 
Felsophyre, Darton and Keith, 1327. 
Fibroferrite, Hoffman, 2660. 
Fire clay. Emmons, Cross, and Eldridge, 1707. 
Fire clay, Gilbert, 2005. 
Fire clay, Holmes, 2720. 
Fourchite, Turner, 5472. 
Fourchite, Washington, 5880. 
Foyaite, Washington, 5877,5880. 
Chemical analyses— Continued. 
Fuller's earth, Ries, 4620,4626. 
Gabbro, Becker, 56,345. 
Gabbro, Clarke and Hillebrand, 925. 
Gabbro, Clements and Smyth, 1017. 
Gabbro, Iddings, 2845. 
Gabbro, Kemp, 2991, 2993. 
Gabbro, Smith, 5062. 
Gabbro, Turner, 5465,5481. 
Gabbro, Washington, 5874,5877. 
Gabbro, Winehell and Grant, 6376. 
Gabbro-diorite, Clarke and Hillebrand, 925. 
Gabbro-diorite, Cross, 1201. 
Gabbro-diorite, Diller, 1507. 
Gabbro-diorite, Lord, 3574. 
Gabbro-schist, Hall, 2251. 
Gahnite, Hidden and Pratt, 2517. 
Galena, Hoffmann, 2659. 
Ganomalite, Penfield and Warren, 4323. 
Garnet, Adams and Harrington, 16. 
Garnctiferous gabbro, Diller, 1507. 
Glaueochroite, Penfield and Warren, 4323. 
Gneiss, Clarke and Hillebrand, 925. 
Gneiss, Kemp, 2993. 
Gneiss, Merrill, 3955,3960. 
Gneiss, Turner, 5465, 5481. 
Gneiss, Van Hise and Bayley, 5704. 
Gold ore, Lindgren, 3531. 
Gold ore, Porter, 4417. 
Gold ore, Smith, 5019. 
Goldschmidtite, Hobbs, 2648. 
Graftonite, Penfield, 4324. 
Granite, Adams, 24, 25. 
Granite, Becker, 345. 
Granite, Clarke and Hillebrand, 925. 
Granite, Clements and Smyth, 1017. 
Granite. Day, 1 166. 
Granite, Diller, 1507. 
Granite, Evans, 1723. 
Granite, Gwillim and Johnson, 2227. 
Granite, Kemp, 2992, 2993. 
Granite, Lindgren, 3535. 
Granite, .Mathews, 3737, 3742. 
Granite, Merrill, 3954. 
Granite, Turner, 5465 
Granite, Pirsson, 1 108. 
Granite, Washington, 5872,5877. 
Granite, Weed, 5948. 
Granite, Weed and Pirsson, 5935. 
Granite, Weidnian, 5970. 
Granite, Winehell, 6276. 
Granite porphyry, Clarke and Hillebrand, 925. 
Granite prophyry, Lindgren, 3531. 
Granitite, Clarke and Hillebrand, 925. 
Granitite, Van Hise and Bayley, 5704. 
Granitite gneiss, Hoffmann, 2660. 
Granodiorite, Clarke and Hillebrand, 925. 
Granodiorite, Lindgren, 3531, 3549. 
Granodiorite, Turner, 5479. 
Granodiorite, Weed, 5948. 
Granolites, Turner, 5491. 
Granulite, Turner, 5465. 
Graphite Hoffmann, 2659. 
Graywacke, Diller, 1507. 
Greenstone, Van Hise and Bayley, 5704. 
Greenstone schist, Turner, 5465. 
Grorudite, Washington, 5872. 
