()66 W. T. LEE STRATIGRAPHY OF COAL FIELDS OF NEW MEXICO 



No. Date. 



sion of the relation of these rocks to the Galisteo sandstone 

 indicates that he regarded the coal beds which are above the 

 marine Cretaceous as No. 4 (Pierre) or younger (although, 

 according to Stevenson, he placed them in No. 3). 



(P. lOCIO) The Cretaceous coal beds extending from Naci- 

 miento Mountains northward are described. 



(Pp. 1007-1008) A section is given in which coal is shown in 

 Cretaceous No. 3, at Cristone, overlain by marine rocks, with 

 fossils supposed to indicate Cretaceous No. 4. 



37. 1875. Cope, Edward D. : The classification and distribution of the Cre- 



taceous deposits of the West. 



Vertebrata of the Cretaceous formations of the West, United 

 States geological survey of the Territories, F. V. Hayden in 

 charge, vol. II, pp. 15'-41, 4°. Washington, 1875. 



(P. 25) Brief reference is made to the Cerrillos coal beds. 



38. 1875. Cope, Edward D. : The Geology of New Mexico. 



Philadelphia Acad. Sci., Proc. (vol. 27), pp. 2G3-2G7. 1875. 

 Am. Jour. Sci., 3d series, vol. 10, pp. 152-153. 1875. 



(P. 264) Reference is made to the age of the Galisteo sand- 

 stone. (P. 267) A section of the rocks west of "Sierra Madre" 

 is given, including both Cretaceous and Tertiary formations. 



39. 1875. Cope, Edward D. : On the Cretaceous beds of the Galisteo. 



Philadelphia Acad. Sci., Proc, for 1875 (vol. 27), pp. 359-360. 

 1875. 



The author discusses Stevenson's paper on "Geological rela- 

 tions of the lignitic group of the Cretaceous," and refers the 

 Galisteo formation to the Triassic on the supposition that 

 former observers had inverted the section. 



40. 1875. Howell, E. E. : Report on the geology of portions of Utah, Ne- 



• vada, Arizona, and New Mexico, examined in 1872 and 1873. 



Geographical and geological explorations and surveys west 

 of the 100th meridian, Wheeler in charge. Report, vol. 3, geology, 

 pp. 227-301, 4°. Washington, 1875. 



(Pp. 275-280) Coal measures in Arizona, Utah, and western 

 New Mexico are correlated with those "east of Mount Taylor" 

 (the southeastern part of the San Juan Basin). 



41. 1875. Loew, Oscar: Report on the mineralogical, agricultural, and 



chemical conditions observed in portions of Colorado, New 

 Mexico, and Arizona. (Including analyses of soils and a chap- 

 ter on "The eruptive rocks of Arizona and New Mexico.") 



Geographical and geological explorations and surveys west of 

 the lOOtli meridian, Wheeler in charge. Report, vol. 3, geology, 

 pp. 5'69-661, 4°. Washington, 1875. 



(Pp. 632-635) An analysis of the anthracite from Placer 

 Mountain (Cerrillos field) is given; also an analysis of bitumi- 

 nous coal from the Rio Puerco near Nacimiento. 



(P. 635) The anthracite coal is said to have been mined "40 

 years ago" (that is, about 1835). 



The coal-bearing rocks are referred to the Cretaceous. 



