The following Publications of the Museum of Comparative Zoology are 

 in preparation; — 



LOUIS CABOT. Immature State of the Odonata, Part IV. 



E. L. MARK. Studies on Lepidosteus, coivtlnued. 



E. L. MARK. On Arachnactis. 



H. L. CLARK. The "Albatross" Hawaiian Echini. 



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

 of Alexander Aqassiz, by the U. 8. Coast Survey Steamer "Blake," as follows: — 



A. MILNE EDWARDS and E. L. BOUVIER. The Crustacea of the "Blake." 

 A. E. VERRILL. The Alcyonaria of the "Blake." 



Reports on the Results of the Expedition of 1891 of the U, 8. Fish Commission Steamer 

 "Albatross," Lieutenant Commander Z. L. Tanner, U. S. N., Commanding, in 

 charge of x\lexander Agassiz, as follows: — 



K. BRANDT. The Sagittae. 



K. BRANDT. The Thalassicolae. 



O. CARLGREN. The Actinarians. 



R. V. CHAMBERLIN. The Annelids. 



W. R. COE. The Nemerteans. 



REINHARD DOHRN. The Eyes of 



Deep-Sea Crustacea. 

 H. J. HANSEN. The Cirrlpeds. 

 H. J. HANSEN. The Schizopods. 

 HAROLD HEATH. Solenogaster. 



W. A. HERDMAN. The Ascidians. 



S. J. HICKSON. The Antipathids. 



E. L. MARK. Branchiocerianthus. 



JOHN MURRAY. The Bottom Speci- 

 mens. 



P. SCHIEMENZ. The Pteropods and 

 Heteropods. 



THEO. STUDER. The Alcyonarians. 



The Salpidae and Dollolldae. 



H. B. WARD. The Sipunculids. 



Reports on the Scientific Results of the Expedition to the Tropical Paclflc, in charge of 

 Alexander Aqassiz, on the U. S. Fish Commission Steamer "Albatross," from 

 August, 1899, to March, 1900. Commander Jefferson F. Moser, U. S. N., Com- 

 manding, as follows : — 



R. V. CHAMBERLIN. The Annelids. MARY J. RATHBUN. The Crustacea 



H. L. CLARK. The Holothurians. 

 H. L. CLARK. The Ophiurans. 



The Volcanic Rocks. 



The CoralUferous Limestones. 



S. HENSHAW. The Insects. 



G. W. MDLLER. The Ostracods. 



Decapoda. 

 G. O. SARS. The Copepods. 

 L. STEJNEGER. The Reptiles. 

 C. H. TOWNSEND. The Mammals, 



Birds, and Fishes. 

 T. W. VAUGHAN. The Corals. Recent 



and Fossil. 



