30 



In preparation : — 



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 

 M. E. Wadsworth ; by Scott and Osborne, on Fossil Mammals ; by C. H. 

 Eigenman, on the Egg Membranes of some Osseous Fishes ; by Messrs. 

 Davis and Whittle, on the Triassic Traps of the Connecticut Valley ; by 

 S. Garman, on the Cave Fauna of Southwestern Missouri; by W. G. 

 Binney, on Cahfornia Land Shells ; by N. S. Shaler, on the Boulder Train 

 of Rhode Island ; by H. Ayers, on Chlamydoselachus ; and by G. H. 

 Parker, on the Eyes of the Lobster. 



Also, in conjunction with the Smithsonian Institution, a Memoir on the Genesis 

 of the Arietidae, by Alpheus Hyatt. 



A Memoir on Calamocrinus, by Alexander Agassiz; a Memoir on the Early Stages 

 of the Odonata, by Louis Cabot; and the continuation of a Memoir on the 

 Development of Osseous Fishes, by Agassiz and Whitman. 



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

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

 Brady (Foraminifera), P. H. Carpenter (Comatulae), 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), A. E. Verrill 

 ( Alcyonaria), and Dr. R. Bergli (Nudibranchs). 



