252 GEOLOGY OF ILLINOIS. 



Dr. CHAPMAN, SIDNEY PULSIFER and WM. GIFFORD, Esqrs., for much 

 valuable information and assistance, and to E. G. JOHNSON and family, 

 for the enjoyment of a quiet home while at work in the county. The State 

 Cabinet is also indebted to WM. GIFFORD, Esq., for several interesting 

 fossils, collected by himself from the Coal Measures of this county, and 

 to Capt. SMITH for a tooth and part of the jaw-bone of a mammoth, 

 found by him in the modified drift of the Peoria bluffs, 



