weeks] PALEONTOLOGY, PETROLOGY, AND MINERALOGY, 1898. 129 
Geologic Formations Described — Continued. 
Medicine beds, Gould, No. 308. 
Medina, Ries, No. 658. 
Mentor beds, Jones, No. 395. 
Merced formation, Turner, No. 777. 
Merced series, Merriam, No. 545. 
Merom sandstone, Blatchley and Ashley, No. 
92. 
Middlefield granitite, Emerson, No. 258. 
Mission Creek series, Emmons, No. 260. 
Mississippian series, Beyer, No. 76. 
Mississippian series, Campbell, No. 129. 
Mississippian series, Keyes, Nos. 415, 423, 425, 
430, 435. 
Mississippian series, Sbepard, No. 698. 
Mississippian series, Weller, Nos. 860, 867. 
Missourian, Bain, Nos. 34, 36, 39. 
Missourian, Keyes, No. 435. 
Missourian, Leonard, No. 483. 
Missourian formation, Tilton and Bain, No. 
766. 
Missourian series, Keyes, Nos. 415, 418, 424. 
Missouri stage. Marbut, No. 520. 
Moberly sandstone, Marbut, No. 521. 
Moccasin limestone, Campbell, No. 127. 
Monkey Hill beds, Dall, No. 186. 
Monkey Hill beds, Hill, No. 352. 
Monmouth formation, Clark, No. 152. 
Monroe shale, Hies, No. 658. 
Montana formation, Spurr, No. 739a. 
Montana formation, Todd, No. 773. 
Monterey series, Fairbanks, No. 262. 
Monterey sandstone, Spencer, No. 723. 
Moscow shale, Grabau, No. 312. 
Mount Laurel sand, Clark, No. 152. 
Mount Toby conglomerate, Emerson, No. 258. 
Mundi Hill beds, Dall, No. 186. 
Mundi Hill beds, Hill, No. 352. 
Mound Valley shale, Haworth, No. 335. 
Myrtle formation, Diller, No. 235. 
Manafalia, Harris, No. 334. 
Naples shale, Grabau, No. 312. 
Nashaquitsa series, Shaler, No. 695. 
Navesink marl, Clark, No. 152. 
Neeleytown limestone, Ries, No. 658. 
Neocene, Darton, No. 194. 
Neocene, Merriam, No. 545. 
New Albany shale, Blatchley and Ashley, No. 
92. 
Newark system, Kiimmel, No. 456. 
Newman limestone, Campbell, Nos. 128, 129. 
New Rochelle serpentine, Merrill, No. 549. 
Niagara, Bell, No. 68. 
Niagara, Blatchley, No. 88. 
Niagara, Ries, No. 659. 
Niagara limestone, Blatchley and Ashley, No. 
92. 
Niagara limestone, Calvin, No. 124. 
Niagara limestone, Foerste, No. 273. 
Niagara limestone, Luther, No. 505. 
Niobrara, Bain, No. 37. 
Niobrara, Darton, No. 194. 
Noix oolite, Keyes, No. 431. 
Nolichucky shale, Campbell, No. 127. 
Norristown shale, Lyman, No. 507. 
Oakland limestone lentils, Diller, No. 235. 
Bull. 162 9 
Geologic Formations Described — Continued. 
Ocoya Creek formation, Blake, No. 81. 
Oneonta sandstone, Clarke, No. 155. 
Onondaga, Ries, No. 658. 
Onondaga limestone, Bishop, No. 80. 
Onondaga limestone, Prosser, No. 642. 
Oread limestone, Haworth, No. 335. 
Oread limestone, "Wilson, No. 911. 
Oriskany, Ries, No. 658. 
Oriskany sandstone, Lincoln, No. 490. 
Oriskany sandstone, Luther, No. 505. 
Orting gravel, Willis, No. 896. 
Osage, Keyes, Nos. 423, 425. 
Osage, Weller, Nos. 864, 867. 
Osage City shale, Beede, No. 65. 
Osage series, Broadhead, No. 107. 
Osage shale, Crane, No. 167. 
Osage shale, Haworth, No. 335. 
Osceola till and clay, Willis, No. 896. 
Osgood limestone, Foerste, No. 273. 
Oswegatchie series, Smith, No. 718. 
Oswego limestone, Haworth, No. 335. 
Ozark, Keyes, No. 423. 
Ozark series, Broadhead, Nos. 107, 108. 
Panama formation, Hill, No. 352. 
Panola formation, Campbell, Nos. 128, 129. 
Parting quartzite series, Spurr, No. 739a. 
Paso Robles formation, Fairbanks, No. 262. 
Patoot series, White and Schuchert, No. 872. 
Pawnee limestone, Haworth, No. 335. 
Payette formation, Lindgren, Nos. 491, 492. 
Pelican sandstone and shale, Tyrrell, No. 786. 
Pennington shale, Campbell, Nos. 128, 129. 
Pennsylvanian series, Beyer, No. 76. 
Pennsylvanian series, Campbell, No. 129. 
Pensauken formation, Salisbury, No. 682. 
Perkasie shale, Lyman, No. 507. 
Perry limestone, Keyes, No. 415. 
Phelps sandstone, Shepard, No. 698. 
Pierre, Darton, No. 194. 
Platte shale, Keyes, No. 424. 
Plattsburg limestone, Keyes, No. 424. 
Plattsmouth limestone, Keyes, No. 424. 
Pleasanton shale, Bain, No. 36. 
Pleasanton shale, Crane, No. 167. 
Pleasanton shale, Haworth, No. 335. 
Pleasanton shale, Keyes, No. 435. 
Pleasanton shale, Marbut, Nos. 517, 519, 520. 
Pocahontas formation, Campbell, No. 127. 
Poison Canyon beds, Osborn, No. 585. 
Portage group, Bishop, No. 80. 
Portage group, Clarke, Nos. 154, 155. 
Portage group, Lincoln, No. 490. 
Portage sandstone, Luther, No. 504. 
Portage shale, Luther, No. 505. 
Poteau group, Drake, No. 239. 
Potsdam, Blatchley and Ashley, No. 92. 
Potsdam, Cushins, No. 182. 
Potsdam, Ells, No. 256. 
Potsdam, Wadsworth, No. 839. 
Pottstown shale, Lyman, No. 507. 
Pre-Kansan drift, Bain, Nos. 33, 40. 
Price sandstone, Campbell, No. 127. 
Princeton conglomerate, Campbell, No. 127. 
Puget formation, Willis, Nos. 894, 895. 
Puyallup Glacial epoch, Willis, No. 896. 
