14 Catalogue of Museums. 



-GENERAL GEOLOGICAL COLLECTION. 



Stratigraphical Series— 1 to 101. 



1 — Granitoid Gneiss. Laurentian Period. 



Westchester Co., N. Y. 



2 — Apatite Rock. Laurentian Period. 



Burgess, Ontario. 



3 — Magnetic Iron Ore. Laurentian Period. 



Port Henry, N. Y. 



4 — Hornblende Schist. Laurentian Period. 



Antwerp, N. Y. 



5 — Hypersthenite. Laurentian Period. 



Port Kent, N. Y. 



6 — Eozoon Limestone. Laurentian Period. 



Thurman, N. Y"". 



7 — Granite. 



8 — Contorted Gneiss. 



9 — Argillite. Huron ian Period. 



Thomson, Minn. 



10 — Granite. Huronian Period. 



Clark's Island, Maine. 

 1 1 — Syenitic Granite. Huronian Period. 



Spruce Head, Maine. 

 12 — Cambrian Slate. Cambrian Period. 



Charnwood Forest, Wales. 



13 — Shale. Cambrian Period. 



Braintree, Mass. 



14 — Potsdam Sandstone. Potsdam Period. 



Potsdam, N. Y. 



15 — Potsdam Sandstone, with Lingula prima. Potsdam 

 Period. 



Iveeseville, N. Y, 



