DEPARTMENT OF GEOLOGY. 141 



The collection of exhibited Artliropoda has been entirely 

 rearranged, the British specimens in table-cases 20-26, the 

 foreign specimens in wall-cases 12-14, with the result that 

 the arrangement now follows the modern classification of the 

 Phylum, as adopted in the new Guide Book. In connection 

 with this work many specimens have been rejected and more 

 appropriate examples substituted, and among those now 

 placed on exhibition are a series of Tropidocaris described 

 by C. E. Beecher, the oldest known Prosopon, well-preserved 

 insects from the Coal-measures of Commentry, the rare 

 Lithomantis, and Julus. 



A wax model of the Silurian Eurypterus fischeri, twice 

 natural size, has been made after the specimens in the 

 Department and the descriptions of Prof. G. E. Holm, and is 

 placed on exhibition. 



Number of specimens of Arthropoda registered, 1,397. 



Annelida (Gallery 8). — Numerous specimens from the 

 following collections have been registered, labelled, and 

 incorporated during the year : — J. F. Blake and Caroline 

 Birley Collections from various localities and horizons ; 

 Col. Grant Collection from the Lower Palaeozoic rocks of 

 Ontario ; S. S, Buckman Collection from British Jurassic 

 rocks ; Collections of W. Gamble, A. W. Rowe, and T. H. 

 Withers from the Upper Cretaceous of Britain, and of 

 A. Laur from that of Riigen. 



In the exhibited series some corrections have been made, 

 and labels printed for the problematical British fossils 

 assigned to JS'ereites and Kereitopsis. 



Number of specimens of Annelida registered, 1,852. 



Polyzoa (Gallery 8 and Workroom). — Progress has been 

 made in the fitting of the cabinets of unexhibited Polyzoa 

 in the workroom, and their arrangement has been continued. 



Numerous recent acquisitions of Cretaceous Polyzoa have 

 been sorted and mounted on wooden slips preparatory to 

 study and cataloguing, 



A number of specimens, formerly registered as Corals, 

 have been removed from that group in Gallery 10, and placed 

 with the Polyzoa, in both the exhibited and unexhibited 

 series. 



Number of specimens of Polyzoa registered, 2,237. 



Brachiopoda (Gallery 8). — The arrangement, registration, 

 and labelling of the unexhibited collection already in the 

 drawers has been completed, and to it there have been added 

 specimens from the J. E. Lee general collection, and the 

 L. Szajnocha collection from the Silurian of Galicia as well 

 as the following more recent accessions : A. S. Piret Collection 

 from the Carboniferous of Tournai ; Addison Crofton Collec- 

 tion from the Carboniferous of Yorkshire and the Jurassic 



