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, continued. 



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 AGASSIZ, by the U. S. 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. S. Fish Commission Steamer " Alba- 

 tross," Lieutenant Commander Z. L. TANNER, U. S. N., Commanding, in charge of 

 ALEXANDER AGASSIZ, as follows: r 



K. BRANDT. The Sagittae. W. A. HERDMAN. The Ascidians. 



K. BRANDT. The Thalassicolae. S. J. HICKSON. The Antipathids. 



O. CARLGREN. The Actinarians. E. L. MARK. Branchiocerianthns. 



R. V. CHAMBERLIN. The Annelids. JOHN MURRAY. The Bottom Speci- 



W. R. COE. The Nemerteans. mens. 



REINHARD DOHRN. The Eyes of Deep- P. SCHIEMENZ. The Pteropods and 



Sea Crustacea. Heteropods. 



H. J. HANSEN. The Cirripeds. THEO. STUDER. The Alcyonarbns. 

 H. J. HANSEN. The Schizopods. - The Salpidae and Doliolidac. 



HAROLD HEATH. Solenogaster. H. B. WARD. The Sipunculids. 



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

 ALEXANDER AGASSI/:, on the U. S. Fish Commission Steamer "Albatross," from August, 

 1899, to March, 1900, Commander Jefferson F. Moser, U. S. N., Commanding, as 

 follows: 



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



H. L. CLARK. The Holothurians. Decapoda. 



IT T ^ii>i- TU n u- G. O. SARS. The Copepods. 



H. I, CLARK. The Oph.urans. L STEJNEGER The Reptiles . 



C. H. TOWNSEND. The Momin.-ils. 



- The Coralliferous Limestones. nirdS) and Fishe9 . 



S. HENSHAW. The Insects. T. W. VAUGHAN. The Corals, Recent 



G. W. MtiLLER. The Ostracods. and Fossil. 



