34 



No. 2. On the Original Connection of the Eastern and Western Coal Fields 

 of the Ohio Valley. By N. S. Shaler. 12 pp. June, 1887. For 

 Nos. 1 and 2, apply to Prof. N. S. Shaler. 



In preparation : — 

 Vol. XIV. 

 No. 2. Studies from the Newport Marine Laboratory. — XVI. Development 

 of Osseous Fishes. Part II. By Alexander Agassiz and C. O. 

 Whitman. With 20 Plates., 

 Vol. XV. 

 No. 1. Reports on the Results of Dredging by the United States Coast Survey 

 Steamer "Blake." — XXXI. Report on the Annelids. By Ernst 

 Ehlers. With 60 Plates. 

 Vol. XVI. 

 No. 3. The Genesis of the Arietid^e. By Alpheus Hyatt. 



Also preparing : — 



Illustrations of North American Marine Invertebrates, from Drawings by Burk- 

 hardt, Sonrel, and A. Agassiz, prepared under the direction of L. Agassiz. 

 Selections from Embryological Monographs, compiled by A. Agassiz, 

 W. Faxon, and E. L. Mark (discontinued for the present). Papers by 

 E. L. Mark, on the Development of Lepidosteus and of Arachnactis ; by 

 A. Hyatt, on Cephalopods ; by M. E. Wadsworth ; and on Fossil Mam- 

 mals, by Scott and Osborne. 



Reports on the Dredging Operations for 1877, 1878, 1879, and 1880, in charge of 

 Alexander Agassiz, by the U. S. Coast Survey Steamer " Blake." H. B. 

 Brady (Foraminifera), P. H. Carpenter (Comatulae), W. H. Dall (Mollusks 

 of the Gulf of Mexico and the Caribbean Sea), G. B. Goode and T. H. 

 Bean (East Coast Fishes and Fishes of the Gulf of Mexico and the 

 Caribbean Sea), A. E. Verrill and W. H. Dall (East Coast Mollusks), 

 A. A. Hubrecht (Nemerteans), A. Milne-Edwards (Crustacea), and A. E. 

 Verrill (Alcyonaria). 



