30 ANNUAL REPORT OF THE 



Besides the corals there -were a few miscellaneous fossils in the 

 Davis and McConathy collection, the most valuable of which were 

 the sponges and Beatricea. 



Dr. Faxon turned into this department, from the Department of 

 Conchology, the Silurian and Tertiary fossils received from the 

 R. E. Call collection. The Tertiary material, consisting mainly 

 of Mollusca, is very fine. 



Two fossil jelly fishes from the Lithographic Slates, Solenhofen, 

 Rhizostomites admirandus and lithographicus, have been purchased, 

 and also two rare specimens of Emperoceras, showing the extra_ 

 ordinarily complex metamorphoses of the species of this curious 

 genus of cephalopods. 



The department is indebted to Dr.R. T. Jackson for miscellane- 

 ous work, and for some time spent upon the rearrangement of 

 gasteropods and trilobites. Dr. A. W. Grabau studied the fossil 

 FusidaB while preparing his thesis. 



The following papers were published : — 



Some Governing Factors usually neglected in Biological Investiga- 

 tions. By Alpheus Hyatt. Biol. Lecture of Marine Biol. Laboratory, 

 Wood's Hole 1899. 8vo. pp. 127-156. 



Cephalopoda, in Zittel's Text-Book of Paleontology, Eastman's Trans- 

 lation. By the same. Macmillan. 8vo. Vol. I. pp. 502-592, wood- 

 cuts 1049 to 1235. 



Ink and Paper for Museum Labels. By Dr. R. T. Jacksou. Report 

 of Museum's Association 1899. 



