(L^ccasiomil |1:ipcrs 



l^ioston ^cicictn of Hatural |)istorn, 



IV. 



(jEOLOGY of the BOSTON 1U8IN 



WILLIAM (). CHOSBY 



VOL. l. 



PAirr ii.— n INGHAM. 



BOSTON : 



BOSTON SOCIETY OF NATURAL HISTORY. 



ISO 4. 



