6 NEW YORK STATE MUSEUM 
The writer is under obligations to the following gentlemen for valuable 
type material and for many courtesies extended to him in the furtherance 
of his work: Messrs John M. Clarke, State Geologist; D. H. Newland, 
Assistant State Geologist; C. A. Hartnagel; H. H. Hindshaw; Thomas 
Cameron: IRS. Hodge; Pies (Clark | Pe Wrekclley. = Ga biea@hadimicks 
heCe Wardell: Cy Wait. wise Cseceke 
