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REPORT OF THE CONCHOLOGICAL AND PAL^EONTO- 

 LOGICAL DEPARTMENTS. 



By Charles E. Hamlin. 



The chief additions made in the department of Palaeontology, 

 since the date of the last annual Report, are Fossil Vertebrates 

 collected by Messrs. S. Garman, H. C. Clifford, G. R. Allaman 

 and L. Hollywood, from the Jurassic, Cretaceous, and Tertiary 

 strata of Kansas, Nebraska, Dakota, and Wyoming. Of these 

 collections provisional disposition has been made, until cases 

 shall be provided for their distribution and arrangement. Since 

 they will probably be more fully noticed in the future reports 

 upon Mammals, Reptiles, and Fishes, no further statement is 

 here required. 



To the series of Fishes from the Lower Carboniferous of 

 Scotland, last year purchased of the collector, Mr. Thomas 

 Stock of Edinburgh, additions have this year been made through 

 the same collector. 



The systematic collection of Fossil Plants, including the 

 American series determined in former years by Mr. Lesque- 

 reux, as well as the European series, has been put in order and 

 transferred for storage to cases in the Synoptic Room, where 

 they have been arranged in the order of the several geological 

 formations which they represent. 



The collections of Invertebrate Fossils, heretofore stored in 

 the unfinished eastern attic, have been removed to the first 

 floor, and the Tertiary, Mesozoic, and part of the Palaeozoic col- 

 lections have been arranged in systematic order in permanent 

 cases recently constructed for them. 



The great collection of Fossil Invertebrata, made by, and in 

 1880 purchased of, Mr. C. B. Dyer of Cincinnati (since de- 

 ceased), which has hitherto remained in the packages, has been 

 unpacked, and, after preliminary arrangement, placed in cases 



