LISTS GEOLOGIC FORMAT I ( ) N S. 
297 
Iowan drift, Pleistocene, Iowa: Arey, 53; 
Calvin, 387, 388; Leonard, 1559; Mac- 
bride, 1639 ; Norton. 1805 : Savage, 2128 ; 
Williams, 2588. 
Irasburg conglomerate, Ordovician, Ver- 
mont : Richardson, 2037. 
[rondequoit limestone, Silurian, New York : 
Clarke. 4«)4 ; Hartnagel, 1085. 
Iron Mountain porphyry, Archean, Mis- 
souri : Sbepard, 2194. 
Ironwood, Michigan : Gordon and Lane, 
985. 
Irvine formation. Tertiary, Kentucky : 
Foerste, 883, 884.- 
Isle La Motte sandstone, Ordovician, Ver- 
mont : Seely, 2164. 
Islesboro formation, Cambrian, Maine: 
Smith et al., 2241. 
Ithaca formation, Devonian, New York: 
Grabau, 991. 
Ithaca shale member, Devonian, New York : 
Williams. 2583. 
Izard limestone, Ordovician, Arkansas: 
Purdue, 1970. 
Jackson formation. Eocene, Mississippi: 
Logan, 1(508. 
Jackson formation. Tertiary, Louisiana ana 
Arkansas: Yeatch, 2436, 24: > ,T. 
Jackson formation. Tertiary, Mississippi: 
Crider, 595, 598; Crider and Johnson, 
599. 
Jackson limestone, Carboniferous, Appala- 
chian region : Stevenson, 2295. 
Jackson stage, Eocene, Louisiana : Harris, 
1079. 
Jacob sand. Pleistocene, New England: 
Fuller, 913. 
Jacobs vllle sandstone, Cambrian, Michigan : 
Lane and Seaman, 1 .".IS. 
Jameco, Pleistocene, New England: Fuller, 
913. 
Jameco gravel. Quaternary, New York : 
Yeatch, 2434. 
Jefferson limestone, Devono-Silurian, Mon- 
tana : Emmons, 806. 
Jefferson City limestone. Cambro-Ordovi- 
cian, Missouri : Shepard, 2194. 
Jeffersonville limestone, Devonian, Indiana : 
Blatchley, 246; Stauffer, 2278. 
Jennings formation, Devonian, Maryland: 
Clark and Mathews, 488. 
Jennings formation. Devonian, West Vir- 
ginia : Grimsley, 1044. 
Jerseyan, Quaternary, Iowa : Norton, 1805. 
Jessamine series, Ordovician, Kentucky : 
Poerste, SS4. 
Joachim limestone, Cambro-Ordovician, 
Missouri : Shepard, 2194. 
Joachim limestone. Ordovician, Illinois: 
Weller, 2523. 
Johnston cemenl limestone. Carboniferous, 
Pennsylvania : Stevenson. 2294. 
lollytown limestone. Carboniferous. Appa- 
lachian region : Stevenson. 2295. 
•lollytown limestone. Carboniferous, Penn- 
sylvania ; Clapp, 475, 
Jordan formation, Cambrian, Iowa: Cal- 
vin. 387, 388. 
Jordan sandstone. Cambrian. Iowa : Beyer 
and Williams, 234. 
Judith" Liver beds, Cretaceous. Alberta : 
Cairnes, 381. 
Judith Liver formation. Cretaceous. Can- 
ada : Dowling, T-'t.Y 
Junction City quartzite, pre-Cambrian, 
Wisconsin : Weidman, 2512. 
Juniata formation, Silurian, Maryland: 
Clark and Mathews, 488. 
Ka chess rhyolite, Tertiary, Washington : 
Smith and Calkins, 2240. 
Kanab sandstone, Utah : Lee, 1544. 
Kanawha series, Carboniferous, West Vir- 
ginia : Grimsley, 1044. 
Kansan drift, Quaternary, Iowa : Arey. 53 ; 
Calvin. 387, 388; Leonard. 1559; Mac- 
bride. 1639; Savage. 2128; Williams, 
2588. 
Kansan ( ?) deposits. Quaternary. Pennsyl- 
vania : Woolsey, 2034. 
Kanwaka shales. Carboniferous, Kansas: 
Wooster, 2636. 
Kasaan greenstone. Cretaceous, Alaska : 
Brooks, 313. 
Katalla formation, Tertiary, Alaska : Mar- 
tin, 1080. 
Kearsarge conglomerate, Michigan : Lane, 
1507. 
Kearsarge conglomerate, Algonkian, Michi- 
gan : Lane, 1509. 
Keechelus andesitic series. Tertiary, Wash- 
ington : Smith and Calkins. 2240. 
Keewatin. pre-Cambrian, Ontario : Silver, 
2212. 
Keeweenawan, Algonkian, Michigan : Gor- 
don and Lane, 985. 
Kelly formation. Carboniferous, New Mexi- 
co : Cordon, 982. 
Kelly limestone, Mississippian, New Mexi- 
co : Gordon, 981. 
Kenai formation. Tertiary, Alaska : Moffit, 
1702: Paige and Knopf. L860 ; Prindle, 
1-956; Stone, 2308. 
Kenai series. Tertiary. Alaska : Brooks, 313. 
Kennett formation, Devonian. California: 
Diller, 721. 
Kennicott formation. Jura - Cretaceous, 
Alaska : Brooks, 313. 
Keokuk limestone. Mississippian, Illinois: 
Weller. 2523. 
Keokuk limestone, Mississippian, Missouri : 
Shepard, 2194. 
Keokuk limestone and shale, Mississippian, 
Iowa : Lever and Williams, 234. 
Kessler limestone lentil, Pennsylvanian, 
Arkansas : Purdue, 1971. 
Ketchikan series, Carboniferous, Alaska : 
Kindle. 1400. 
Ketchikan series, Triassic and Carbonifer- 
ous, Alaska : Brooks, :'> i 3. 
Keweenawan, pre-Cambrian, Michigan : 
Lane and Seaman. 1518, 
