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IOWA ACADEMY OF SCIENCES. 
Oberholz coal, Broadhead. (Missouri Geol. 8ur., Iron Ores and Coal 
Fields, pt. ii, p. 64, 1873 ) In Kay county, Missouri, the equivalent of the 
Lexington seam. Henrietta division. 
Osage coal, Owen, (Geol. Sur. Wisconsin, Iowa and Minnesota, p. 138, 
1852.) Name applied to very thick seams found on the Osage river and 
on the Missouri river above the mouth of the Osage, in central Missouri. 
The seam is really disconnected and consists of very limited pockets of 
great thiekness— 75 feet in some cases. They may be considered as situated 
at the very base of the Cherokee. 
Osage coal, Haworth (Kansas Univ. Quart, Yol. Ill, p. 278, 1895.) In 
Osage county, Kansas; it appears to lie in the Platte shales. 
Osage coal, Saunders. (Trans. Kansas Bd. Agri , 1872, p. 388, 1873 ) A 
name known widely through central Kansas for one of the principal coal 
seams. Platte shales. 
Osage coal field, Hay. (Trans. Kansas Bd. Agri , 1875, p 125, 1876 ) The 
seam is in the Platte shales, in central Kansas. 
Osage City coal, Haworth. (Kansas Univ. Quart. Vol. Ill, p. 304 1895.) . 
Seam in Osage and adjoining counties, in Platte shales. 
Osage river coal. King. (Proc. American Asso. Adv. Sci., Vol. V, p 174, 
1851.) In basal part of Cherokee, in central Missouri. 
Osage river coal, Johnson. (U. S. 28th Cong., 1st Sess , Senate Doc. 436, 
p. 539, 1844.) Seam exposed on the Osage river, in central Missouri. Base 
of Cherokee. 
Oswego coal, Crane. (Univ. Geol. Sur Kansas, Vol. Ill, p. 154, 1898.) 
In southeast Kansas, a name given to a coal seam that is, perhaps, the same 
as the Pittsburg seam of the Cherokee shales. 
Ouita coal, Winslow. (Arkansas Geol. Sur., Ann. Kept. 1888, Vol. Ill, p. 
34, 1888.) In lower part of Arkansan series, in Pope county, Arkansas. 
Panoracoal, St. John. (Iowa Geol Sur., Vol. I, p 274, 1870.) One of 
the lower seams of the Marais des Cygnes, in Dallas county, Iowa. 
Philpott coal, Winslow. (Ark. Geol. Sur., Ann Kept. 1888, Vol. Ill, p. 
33, 1888.) Near the top of Arkansan series, in Johnson county, Ark. 
Pittsburg coal, Haworth. (Univ Geol. Sur., Kansas, Vol. HI, p. 27, 
1898.) In the lower part of the Cherokee, in southeast Kansas. It is also 
called the Weir City-Pittsburg heavy coal, or lower Weir City-Pittsburg 
seam. 
Pleasanton coal, Haworth. (Kans. Univ. Quart., Vol. Ill, p. 305, 1895.) 
In Linn county, eastern Kansas, base of Marais des Cygnes division. 
Rich Hill coal, Winslow. (Missouri Geol. Sur., Vol. I, p. 146, 1891.) The 
leading seam mined in Bates county, Missouri. It lies in the Cherokee. 
Kulo coal bed, Broadhead. (Missouri Geol. Sur., Iron Ores and Coal 
Fields, pt ii, p. 132, 1873 ) Name applied in northwest Missouri to a thin 
seam, best exposed at Kulo, Nebraska which lies near the base of the 
Atchison shales; now known to be the equivalent to the Nodaway seam. 
Secor coal. Chance (Trans. Am. Inst. Min. Eng., Vol. XVIII, p. 658, 
1890.) Near middle of equivalent of Des Moines series, in Choctaw field, in 
eastern Indian Territory. 
Shinn coal, Winslow. (Arkansas Geol Sur., Ann. Kept. 1888, Vol. Ill, 
p. 35, 1888.) Near base of Arkansan series in Pope county, Arkansas. 
