12 PUBLICATIONS OF THE ZOOLOGICAL MUSEUM. 



N. S. SHALER. Boulder train of Rhode Island. 



M. E. WADS WORTH. Lithological Studies. Part II. 



J. D. WHITNEY. Origin and Mode of occurrence of Iron and its Ores. 



,, Nomenclature and Classification of Ore-Deposits. 



Contributions fi'om the ZOOLOGICAL LABORATORY, in charge of Professor E. L. Mark, 



as follows ; — 

 E. R. BOYER on the Mesoderm of Teleosts. 



H. P. JOHNSON. Embryonal Envelopes of the Scorpion. ( Ji t pi wr) 

 W. WHITNEY. The Histology of Thyon.6. 

 Contributions from the PETROGRAPHICAL LABORATORY, in charge of Dr. j. E. 



■^VoLFF, as follows : — 

 Acmite Trachyte from the Crazy Mountains, Montana. V. By J. E. Wolff and R S. Taer. 

 Reports on the Results of the Expedition of 1891 of the U. S. Fish Commission Steamer 



"Albatross," Lieutenant Commander, Z. L. Tanner, U. S. N. , commanding, in (harge of 



Alexander Agassiz, as follows : — 

 A. AGASSIZ. Report of the Cruise. With 22 Plates. (In press.) 

 „ The Acalephs and the Pelagic Fauna. 



„ The Echini. 



J. E. BENEDICT. The Annelids. 

 W. H. DALL. The MoUusks. 

 C. B. DAVENPORT. The Bi-yozoa. 

 S. F. CLARKE and Y. E. PEABODY. The Hydroids. 

 W. FAXON. The Crustacea. 

 S. GARMAN. The Fishes. 

 A. GOES. The Foraminifera. 

 C. HARTLAUB. The Comatulse. 

 W. E. HOYLE. The Cephalopods. 



R. VON LENDENFELD. The Phosphorescent Organs of Fishes. 

 H. LUDWIG. The Holothurians. 

 C. F. LtJTKEN. The Ophiuridse. 

 E. L. MARK. The Actinarians. 

 JOHN MURRAY. The Bottom Specimens. 

 ROBERT RIDGWAY. The Alcoholic Birds. 

 W. PERCY SLADEN. The Starfishes. 

 L. STEJNEGER. The ReptUes. 

 THEO. STUDER. The Alcyonarians. 

 H. V. WILSON. The Sponges. 

 W. M. WOODWORTH. The Planarians. 



ALEXANDER AGASSIZ. 



Cambridge, Mass., Dec. 20, 1891. 



Application for the Publications of the Museum should be made to the Director of the Museum of 

 Comparative Zoology, Cambridge, Mass. 





