170 
INDEX TO NORTH AMERICAN GEOLOGY , 
tflULL.a 
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Geologic formations described — Continued. 
Monroe Creek beds* Tertiary* Nebraska, Pe^ 
terson, 1. 
Montana group. Cretaceous, South Dakota, 
Todd, 4 ; 
Montana group, CfetaceoUs, South Dakota, 
Todd and Hall, 2. 
Monterey, California, Osmont, 1. 
Monterey shales, Miocene, California, Ander- 
son, 1. 
Monterey shale, Miocene, Tertiary, California, 
Haehl and Arnold, 1. 
Monterey shale, Neocene, California, Fair- 
banks, 2. 
Moorefield shale, Carboniferous, Arkansas, 
Adams (G. I.), 2. 
Moorefield shale, Carboniferous, Arkansas, 
Ulrich, 2. 
Morgantown sandstone, Carboniferous, Penn- 
sylvania, Richardson, 1. 
Morgantown sandstone member of the Cone- 
maugh formation. Carboniferous, Pennsyl- 
vania. Campbell, 4. 
Morita formation, Cretaceous, Arizona, Ran- 
some, 1, 4. 
Morrison formation, Cretaceous, South Dako- 
ta, Darton and smith, 1. 
Morrison formation, Jurassic, Black Hills 
region, Jaggar, 1. 
Morrison shales, Cretaceous, Black Hills re- 
gion and Wyoming, Darton. :>. 
Morrison shale, Cretaceous, Wyoming, South 
Dakota. Darton, 1. 
Morrow formation, Carboniferous, Arkansas, 
Adams (G. I.), 2. 
Morrow formation. Carboniferous, Arkansas, 
Ulrich, 2. 
Moscow shale, Devonian, New York, Clarke 
and Luther, 1. 
Mount Baker lava. Quaternary, Washington, 
Smith and Calkins, 1. 
Mount Stuart granodiorite, pre-Tertiary, 
Washington, Smith (G. O.), 1. 
Mural limestone, Cretaceous, Arizona, Ran- 
some, 1, 4. 
Murray slate. Cambrian, North Carolina and 
Tennessee, Keith, 2. 
Naco limestone, Carboniferous, Arizona, Kan- 
some, 1, 4. 
Nantahala slate, Cambrian, North Carolina 
and Tennessee, Keith, 2. 
Nanushuk series, Cretaceous, Alaska, 
Schrader, 1. 
Napoleon, Carboniferous, Michigan, Greg- 
ory, 1. 
Nebo quartzite, Cambrian, North Carolina 
and Tennessee, Keith, 2. 
Nebraska beds, Tertiary, Nebraska, Peter- 
son, 1. 
Necoxtla slates, Cretaceous, Mexico, Hall 
(C. E.), 1. 
Negaunee formation, Algonkian, Bayley, 1. 
Neosho member, Carboniferous, Kansas, Pros- 
ser and Beede, 1. 
Neva limestone, Carboniferous, Kansas, Pros- 
ser and Beede, 1. 
Geologic formations described— Continued: 
New Albany black Shale, DeVohirth, Indiana, 
Hopkihs, &. 
Newark system, New Jersey, Knapp, 1. 
New Red, Pennsylvania, Lyman, 2. 
Niagara group, Silurian, Indiana, Kindle, 
Niagara limestone, Silurian, Indiana, Foers 
3. 
Nichols slate, Cambrian, North Carolina and 
Tennessee, Keith, 2. 
Niobrara formation, Cretaceous, Black Hills 
region, Wyoming and Colorado, Darton, 3. 
Niobrara formation, Cretaceous South Da- 
kota, Darton and Smith, 1. 
Niobrara formation, Cretaceous, South Da- 
kota, Todd, 4. 
Niobrara formation, Cretaceous, South Da- 
kota, Todd and Hall, 1, 2. 
Niobrara formation, Cretaceous, Wyoming, 
Darton, 1. 
Noblesville dolomite, Silurian, Indiana, Kin- 
dle, 3. 
Noel shale, Carboniferous, Arkansas, Adams 
(G. I.), 2. 
Noel shale, Carboniferous, Arkansas, Ulrich, 2, 
Nolichucky shale, Cambrian, Tennessee, 
Keith, 2. 
Norman division, Permian, Oklahoma, 
Gould, 1. 
Oneota limestone, Iowa, Beyer and Wil- 
liams, 2. 
Onondaga limestone, Devonian, New York, 
Clarke and Luther, 1. 
Opeche formation, Carboniferous, Black Hil 
region and Wyoming, Darton, 3. 
Opeche formation, Carboniferous, South Ila 
kota, Darton and Smith, 1. 
Opeche formation, Carboniferous, Wyoming, 
South Dakota, Darton, 1. 
Orange sand ( Lafayette) formation, Tertiary 
(Pliocene), Mississippi, Logan, 2. 
Orindan, California. Osmont, 1. 
Oriskany sandstone, Devonian, New York, 
Clarke and Luther, 1. 
Osgood bed, Silurian, Indiana, Foerste, 3. 
Osos basalt, California, Fairbanks, 2. 
Otero marls, Tertiary (?), New Mexico, Her- 
rick (C. L.), 4. 
Ouray limestone, Devonian and Mississip- 
pian, Colorado, Cross (W.), 1. 
Pacific sandstone, Cambro-Ordovician, Mis- 
souri, Ball, 1. 
Pacific sandstone, Ordovician, Missouri, Ball 
and Smith, 1. 
l'ahasapa formation, Carboniferous, Black 
Hills region, Jaggar, 1. 
Pahasapa limestone, Carboniferous, Wyo- 
ming, South Dakota, Darton, 1. 
Pahasapa limestone, Carboniferous (Missis- 
Sippian), Black Hills region, Darton, 3. 
Painted Desert formation, Utah, Huntington 
and (ioldthwait, 1. 
Parsons limestone, Carboniferous, Kansas, 
Adams, Haworth, and Crane, 1. 
Parting quartzite, Devonian, Colorado, Cross 
(W.)l. 
