BROADHEAD — HIST. MEMOIR OF MISSOURI GEOL. SURV. 613 



In 1857 Garland C. Broadhead and Henry Engelmann were 

 appointed Assistant State Geologists. Mr. E. was employed 

 one year on the survey, assisting Dr. Shumard ; G. C. Broadhead 

 was employed for four years, until the termination of the survey 

 in 1861. G. C. B, was a native of Virginia, but raised in Mis- 

 souri : he studied geology, natural science and civil engineering 

 at the University of Missouri and the Western Military Institute, 

 Ky. ; and had for his instructor Prof. E. Leffingwell, and nt the 

 Military Institute his instructors were Prof. Richard Owen (a 

 brother of David Dale Owen), Geologist and Chemist, and Col. 

 (afterwards Gen.) Bushrod R. Johnson and Col. Williamson, 

 Pi'ofessors of Mathematics and Engineering. Previously to being 

 attached to the Missouri Geol. Survey, G. C. B. was employed 

 for five years as a Civil Engineer. During 1S57 Warwick Hough, 

 recently Judge of Supreme Court of Missouri, assisted Dr. Shu- 

 mard in his geological surveys. 



In 1858 Dr. J. G. Norwood was appointed Assistant Geolo- 

 gist. Dr. N. had previously been principal assistant to Dr. D. D. 

 Owen in the survey of Wisconsin, Iowa and Minnesota ; he had 

 also been State Geologist of Illinois, and had been several times 

 professor in medical colleges ; he was a native of Kentucky, and 

 had been educated at Lexington and Louisville. Mr. Edwin 

 Harrison, of St. Louis, assisted Dr. N. on his surveys in 1858 ; 

 he has since been extensively engaged in mining and the manu- 

 facture of iron. He was a pupil of Agassiz, 



In 1858 Dr. Shumard resigned his position on the Missouri 

 Survey and accepted a position as State Geologist of Texas. 



Mr. R. B. Price also resigued his position in 1858. 



In 1858 P. C. Swallow and Daniel Crosby were employed as 

 assistants on the survey. 



P. C. Swallow was employed until 1861. 



H. A. Ulffers was appointed Draftsman in place of R. B. 

 Price, and was also Assistant Geologist until 1861. 



Dr. Norwood was appointed Prof, of Chemistry in the Mis- 

 souri University, and Dr. John Locke, of Cincinnati, Ohio, was 

 appointed Assistant Geologist in his place. 



Mr. C. Gilbert Wheeler, of Chicago, Ills., a very thorough 

 chemist, was Assistant Geologist during i860 and part of 1861. 



The CHARACTER of the work of the first survey was mainly 



