2l6 THE JOURNAL OF GEOLOGY. 



county reports, prepared during the Swallow survey.^ The sec- 

 ond volume was a large octavo of 655 pages^ transmitted in 

 April, 1873. Part I consists, first, of a chapter on the geology 

 of Pilot Knob and vicinity by Mr. Pumpelly ; the second chap- 

 ter embodies analyses of ores, fuels and pig irons ; chapters III 

 to IV, inclusive, constitute a partial report on the iron ores of 

 Missouri by Dr. Adolph Schmidt. Part II consists of fifteen chap- 

 ters and three appendices ; of these, chapters I to VI contain 

 general information relating to the coal fields of the state by 

 Prof. G. C. Broadhead ; chapters VII to VIII are on the geol- 

 ogy of Lincoln county by Prof. W. B. Potter ; chapters IX to 

 XV consist of reports on seven counties by G. C. Broadhead ; 

 appendices A, B and C relate to building stones and contain a 

 list of Coal Measure fossils. 



After Mr. Pumpelly's resignation, Prof. G. C. Broadhead was 

 appointed state geologist and assumed charge in July, 1873. 

 During this administration the examinations of the iron ores 

 and of the lead and zinc deposits were continued, and sur- 

 veys for a number of county reports were made. One volume 

 was issued by the Broadhead survey. ^ This is a large octavo of 

 over 790 pages transmitted in August, 1874. Chapters I to VI, 

 inclusive, are upon general topics relating to the history of 

 exploration and the general geology of the state by Professor 

 Broadhead; chapters VI to XXI, inclusive, consist of reports 

 on fifteen counties ; chapters XXII to XXXII, inclusive, and 

 XXXIV, describe the lead and zinc deposits of the state from 

 work done by Dr. Schmidt and Mr. A. Leonhard ; chapters 

 XXXIII and XXXV relate to the iron ores of southeastern 



'Reports on the Geological Survey of the State of Missouri, 1855-1871, by G. €• 

 Broadhead, F. B. Meek and B. F. Shumard, Jefferson City, 1873, pp. 324 and iv. 



^Geological Survey of Missouri, Raphael Pumpelly, Director. Preliminary 

 Report on the Iron Ores and Coal Fields, from the field vi^ork of 1872, vi^ith 190 

 illustrations in the text and an atlas. New York: Julius Bien, 1873. P. xvi., 214 

 and 441. 



3 Report of the Geological Survey of Missouri, including field work of 1873-74, 

 with 91 illustrations and an atlas. Garland C. Broadhead, State Geologist, Jefferson 

 City, 1874. Pp. 734. L. 4, 50. 



