IOWA ACADEMY OF SCIENCES. 135 



Mammoth coal, Broadhead. (Missouri Geol. Sur., Rept. 1873-4, p 338, 

 1874.) 'J'he thick local pocket in Callaway county, central Missouri. Base 

 of the Cherokee. 



Mammoth coal, Marbut. (Missouri Geol. Sur., Vol. Xli, pt. ii. p. 147, 

 1898.) A local bed in the Cherokee division, deposited in Henry county, 

 Missouri. 



Marais des Cygnes coal, Swallow. (Kansas Geol. Sur., Prelim. Hep'., p. 

 22, 1866 ) Main coal of Marais des Cygnes, or Pleasanton formation, in 

 eastern Kansas. 



Marais des Cygnes group, Broadhead. (Missouri Geol. Sur.,Pvept 1873-4, 

 p. 124, 1874 ) Name applied in Vernon county, in southwest Missouri, to 

 the upper part of the Cherokee. 



Mastodon coal, Broadhead. (Missouri Geol. Sur.. Rept. 1873-4, p. 338, 

 1874.) A limited pocket, 80 feet thick, in Callaway county, Missouri. Base 

 of Cherokee. 



Mayberry coal. Chance. (Trans. Am. Inst. Min. Kng. Vol. XVIII, p. 

 655, 1890.) At top of the equivalent of Des Moines series, in the Choctaw 

 field, in eastern Indian Territory. 



McAlester coal, Chance. (Trans. Am. Inst. Min. Eng., Vol. XVIII, p. 



657, 1890 ) Near middle of equivalent of Des Moines series, in Choctaw 

 field, in eastern Indian Territory. 



Mendota coal, Winslow. (Missouri Geol. Sur., Vol. 1, p. 57, 1891.) This 

 is the Mystic seam of Iowa; and its horizon is in the Henrietta division. 

 Now applied in northeast Missouri, in Putnam county chiefly. 



Mormon Ridge coal, Beyer. (Iowa Geol Sur , Vol. IX, p. 218, 1899.) In 

 lower part of Des Moines series, in Boone county, Iowa. 



Mound City coal, Haworth. (Kansas Univ. Quart , Vol III, p. 30-5, 189".) 

 In Linn county, e istern Kansas, in median part of Marais des Cygnes 

 division. 



Muchakinock coal, Bain (Iowa Geol Sur , Vol IV, p. 361, 1895 ) One of 

 the most extensive seams in the lower part of the Cherokee, in Mahaska 

 county, Iowa. 



Mulberiy coal, Broadhead (Missouri Geol. Sur., Rept. 1873-4, p. 168, 

 1874.) In Bates county, in southwest Missouri, refers to a seam near the 

 base of the Marais des Cygnes division (Pleasanton.) 



Muiky coal, Broadhead. (Missouri Geol. Sur., Iron Ores and Coal Fields, 

 pt. ii, p 46. 1873 ) Title given in Lafayette county, Missouri, to the second 

 principal coal bed. 



Mystic coal, Keyes. (Iowa Geol. Sur , Vol. II, p. 408, 1892.) In Appa- 

 noose county and adjoining country, the principal coal mined. Henrietta 

 division. 



Neodesha -coal, Haworth. (Kansas Univ. Quart., Vol. Ill, p. 305, 1895.) 

 One of the seams in the lower part of the Thayer division, in Wilson county, 

 southeast Kansas. 



Modaway coal, Broadhead. (Missouri Geol. Sur., Iron Ores and Coal 

 Fields, pt. ii, p 398, 1873.) Name applied to the principal coal seam of the 

 Nodaway river valley, in northwest Missouri. It lies about 75 to 100 feet 

 above the base of the Atchison shales. 



Norman coal, Chance. (Trans. Am, Inst. Min. Eng.. Vol. XVIII, p 



658, 1890.) Near middle of equivalent of Des Moines series, in Choctaw 

 coal field, in eastern Indian Territory. 



