DEPARTMENT OF GEOLOGY. 121 



Preparing moulds of twenty various Fossils in the collection, 

 and making forty-six casts of same, and colouring many 

 casts, for exchanges, or for exhibition in the Galleries. 



Transferring and fixing in large frames, for exhibition in 

 Gallery No. 6, skeletons of large fishes Portheus and Empo, 

 from North America; recently acquired by purchase. 



The task of developing in detail the several portions of the 

 remarkably complete example of Pariasaurus Bainii from 

 the Karoo Beds, South Africa, and articulating the same for 

 exhibition, has occupied more than a year of highly-skilled 

 and patient work, involving extreme skill in overcoming the 

 difficulties arising out of the intractable nature of the matrix, 

 and its close adhesion to the surface of the bones. 



The specimen is still in the hands of the artists engaged by 

 the Royal Society to prepare drawings of the several portions 

 of the skeleton, to illustrate Professor Seeley's paper for the 

 Philosophical Transactions. 



Richard Hall, the Assistant Mason, to whose skill the task 

 of developing the Pariasaurus was confided, has since de- 

 veloped three skulls of Dicynodon, two of Tapinocephalus, 

 and a large skull of a new Theriodont reptile not yet described. 

 All these specimens have been obtained from the Karoo for- 

 mation (Triassic) of South Africa, by Professor H. G. Seeley, 

 F.R.S., assisted by a grant from the Royal Society. 



Numerous specimens of rocks, intended to form part of the 

 series of Stratified or Sedimentary Rocks, for Gallery No. 11, 

 have been trimmed and reduced ready for mounting on blocks. 

 Numerous specimens of Fossil Fishes, of Cephalopoda, of 

 Crustacea, of Echinoderms, Corals, and Coal-plants, have 

 been repaired, developed, or mounted, ready for exhibition in 

 the several Galleries. Numerous microscopic sections of 

 organisms have also been prepared and mounted upon glass, 

 and sections of others have been cut and polished, to show 

 their internal structure. 



Printing Labels. 



A very large amount of work has been accomplished, firstly, 

 in the preparation of labels, and, secondly, in composing and 

 printing the same, mounting them upon wood, and finishing 

 them, ready for the exhibition-cases in the several Galleries. 



Thus, for the Mammalia, Aves, Reptilia, and Fishes, 374 

 separate labels have been prepared, and more than 2,500 copies 

 printed off. 



For the Cephalopoda, 157 labels have been composed, and 

 942 copies printed off". 



For the Pleistocene Mollusca (Land and Fresh-water Shells), 

 135 labels have been composed, and 810 copies printed off". 



For the Paris Basin Tertiary (Marine) Mollusca, 314 labels 

 have been composed, and 1,096 copies printed off". 



For the " S. V. Wood," the " Edwards," and the " David- 

 0.108. son" 



