University of North Dakota. 1 9 



8U — Batli Oolite. Jurassic Period. 



Jjiitli, England 



81 — Lithographic Liiuestone. Jurassic Period. 



Solenhofen, I^avaria. 

 82 — Limestone .Middle Oolite. Jurassic Period. 



Saskale, Karpatlien. 

 83 — Portland Oolite. Jurassic Period. 



Portland, England. 

 84 — Limestone. Jurassic Period. 



Mt. of Olives, Palestine. 

 85 — Greensand. Cretaceous Period. 



Folkestone, England. 



86 — Cretaceous Period. Dakota Group. 



Ottawa Co., Kansas. 

 87 — "Greensand." Cretaceous Period. 



Marlborough, N. J. 



88— White Chalk. Cretaceous Period. 



Dover, England. 



89 — Flint Nodule. L^pper Chalk. Cretaceous Period. 



Dover, England. 



90 — Nummulitic Limestone. Tertiary Period. 



Near Cairo, Egypt. 

 91 — Bridger Group. Eocene. Tertiary Period. 



Smith's Fork, Wyoming. 

 92 — Variegated Sand. Tertiary Period. 



Alum J>ay, Isle of Wight. 

 93 — Calcaire Grossier. Tertiary Period. 



Arcneil, France. 

 94 — Tertiary Period. 



Mt. Lebanon, Asia Minor. 

 95 — Diatomaceous Earth. Tertiary Period. 



Richmond, Vh. 



