@book{24417,
	author = {Michigan.},
	title = {First biennial report of the progress of the Geological survey of Michigan,},
	publisher = {Hosmer & Kerr, printers to the state,},
	year = {1861.},
	address = {Lansing,},
	note = {Alexander Winchell, state geologist; M. Miles, state zoölogist.}
}