SCIENTIFIC STAFF 



WM. BULLOCK CLAEK, State Geologist. 



SUPERINTENDENT OF THE SURVEY. 



EDWAED B. MATHEWS, . . Assistant State Geologist. 



CHAELES K. SWAETZ, Geologist. 



EDWAED W. BEEEY, Geologist. 



J. T. SmGEWALD, JE., Geologist. 



