weeks.] PALEONTOLOGY, PETROLOGY, AND MINERALOGY, 1898. 127 
Geologic Formations Described— Continued. 
Dakota formation, Spurr, No. 739a. 
Dakota formation, Todd, No. 769. 
Dakota group, Gould, No. 308. 
Dakota sandstone, Beede, No. 67. 
Dakota sandstone, Marsh, No. 524. 
Deer Creek limestone, Haworth, No. 335. 
De Kalb limestone, Bain, No. 39. 
Delaware stage, Calvin, No. 123. 
Del Rio clay, Hill and Vaughan, No. 357. 
Des Moines, Bain, Nos. 34, 36, 39. 
Des Moines, Keyes, No. 435. 
Des Moines, Leonard, No. 483. 
Des Moines, Tilton and Bain, No. 766. 
Des Moines series, Keyes, Nos. 415, 418, 430. 
Des Moines series, Shepard, No. 698. 
Des Moines stage, Beyer, No. 76. 
Des Moines stage, Calvin, No. 120. 
Des Moines stage, Marbut, Nos. 520, 521. 
Dismal formation, Campbell, No. 127. 
Dotson sandstone, Campbell, No. 127. 
Douty gravel, Willis, No. 896. 
Dover shale and sandstone, Beede, No. 65. 
Dresbach shale, Berkey, No. 74. 
Dundee limestone, Sherzer, No. 699. 
Earlham limestone, Bain, No. 39. 
Earlton limestone, Haworth, No. 335. 
Edwards formation, Hill and Vaughan, No. 
357. 
Ekmont limestone, Beede, No. 65. 
Elgin sandstone, Haworth, No. 335. 
Elk Falls limestone, Haworth, No. 335. 
Elk Mountain porphyry, Emmons, No. 259. 
Empire limestone, Bagg, No. 26. 
Empire limestone, Dall, No. 186. 
Empire limestone, Hill, No. 352. 
Encrinal limestone, Grabau, No. 312. 
Equus beds, Williston, No. 903. 
Erie limestone, Haworth, No. 335. 
Esopus, Ries, No. C58. 
Eureka limestone, Haworth, No. 335. 
Eureka shale, Drake, No. 239. 
Eureka shale, Shepard, No. 698. 
Fayette breccia, Calvin, Nos. 120, 124. 
Fayetteville shale, Drake, .No. 239. 
Flathead quartzite, Griswold, No. 321. 
Flanagan chert, Campbell, No. 128. 
Florencia formation, Pilsbry, No. 628. 
Folley limestone, Keyes, No. 431. 
Forbes limestone, Keyes, No. 424. 
Fordham gneiss, Merrill, No. 548. 
Fort Riley horizon, Cummins, No. 180. 
Fort Worth limestone, Hill and Vaughan, No. 
357. 
Fortymile series, Emmons, No. 260. 
Franciscan series, Turner, No. 777. 
Franconia sandstone, Berkey, No. 74. 
Franklin white limestone, Wolff and Brooks. 
No. £81. 
Fredericktown dolomite, Keyes, No. 415. 
Galena limestone, Blatchley and Ashley, No. 
92. 
Galena series, Sardeson, No. 686. 
Gallatin, Griswold, No. 321. 
Garnett limestone, Haworth, No. 335. 
Garrard sandstone, Campbell, No. 128. 
Geologic Formations Described — Continued. 
Gatun beds, Dall, No. 186. 
Gatun formation, Hill, No. 352. 
Genesee shale, Blatchley, No. 88. 
Genesee shale, Blatchley and Ashley, No. 92. 
Genesee shale, Girty, No. 299. 
Genesee shale, Grabau, No. 312. 
Genesee shale, Lincoln, No. 490. 
Genesee slate, Bishop, No. 80. 
Genesee slate, Luther, No. 505. 
Giles formation, Campbell, No. 127. 
Girardeau limestone, Keyes, No. 415. 
Glen Rose formation, Hill and Vaughan, No. 
357. 
Golden Gate series, Fairbanks, No. 262. 
Golden Gate series, Turner, No. 777. 
Goniatite limestone, Luther, No. 505. 
Goshen schist, Emerson, No. 258. 
Granby tuff, Emerson, No. 258. 
Grand Rapids sandstone. Tyrrell, No. 786. 
Grand Tower limestone, Keyes, 415. 
Graydon sandstone, Shepard, No. 698. 
Greenbrier limestone, Campbell, No. 127. 
Greenleaf sandstone, Gould, No. 308. 
Greggs Landing, Harris, No. 334. 
Guallava beds, Hill, No. 352. 
Gunnison formation, Spurr, No. 739a. 
Gwynedd shale, Lyman, No. 507. 
Hamilton, Blatchley and Ashley, No. 92. 
Hamilton, Ries, Nos. 658, 659. 
Hamilton group, Bishop, No. 80. 
Hamilton group, Luther, No. 505. 
Hamilton series, Prosser, No. 642. 
Hamilton shale, Bishop, No. 80. 
Hamilton shale, Grabau, No. 312. 
Hamilton shale, Lincoln, No. 490. 
Hampden diabase, Emerson, No. 258. 
Hannibal shale, Shepard, No. 698. 
Hardistonville quartzite, Wolff and Brooks, 
No. 931. 
Harrison diorite, Merrill, No. 548. 
Hatchetigbee, Harris, No. 334. 
Hawley schist, Emerson, No. 258. 
Hazlet sand, Clark, No. 152. 
Henrietta limestone, Keyes, No. 435. 
Henrietta limestone, Marbut, Nob. 517, 518, 519, 
520. 
Highbridge limestone, Campbell, No. 128. 
Hinton formation, Campbell, No. 127. 
Holyoke diabase, Emerson, No. 258. 
Hoosac schist, Emerson, No. 258. 
Houaker limestone, Campbell, No. 127. 
Howard limestone, Haworth, No. 335. 
Hudson River, Bell, No. 68. 
Hudson River, Blatchley and Ashley, No. 92. 
Hudson River, Ries, No. 658. 
Hudson shale, Keyes, No. 415. 
Huerfano series, Osborn, No. 585. 
Huronian, Bell, No. 68. 
Huronian, Coleman, No. 161. 
Huronian, Ells, No. 253. 
Illinoian till, Leverett, Nos. 487, 488. 
Independence limestone, Haworth, No. 335. 
Independence shale, Calvin, No. 124. 
In wood limestone, Merrill, No. 548. 
Iola limestone, Haworth, No. 335. 
