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REPORT ON PALAEONTOLOGY. 



By Alpheus Hyatt. 



The result of the year's work can be summarized as follows. 

 The older collections which needed revision and concentration, 

 and the collections still remaining in their original wrappers, were 

 sorted or distributed into zoological divisions. A general system 

 of classification of permanent and temporary labels was devised. 

 The permanent label designating the class or division, and a tem- 

 porary label, which could be snapped into place between the 

 heads of two upholsterer's tacks, devised by Mr. Jackson was 

 adopted. Upon this was written or printed all necessary informa- 

 tion as to the contents of the tray, except the name of the class 

 or division, and formation. This label can be removed and re- 

 written as required, and in its final form gives the names of the 

 genera and species contained in each tray. In accordance with 

 this plan of work, the contents of every tray have been inspected, 

 and placed in sufficiently good condition to receive permanent 

 and provisional labels on the outside. The total number of trays 

 is 6,272. 



A complete list of the trays and their contents has been made 

 by Mr. R. T. Jackson. The amount of space occupied by each 

 division, including duplicates, is as follows : — 



Trays. Teats. 



Eoraminifera 16 Bryozoa 185 



Acalephs . 9 Brachiopods 896 



Graptolites 59 Lamellibranchs 1032 



Sponges 53 Heteropods, Scaphopods, and 



Corals 468 Pteropods 62 



Crinoids 294 Gasteropods . 622 



Cystoids 17 Cephalopods 1067 



Blastoids 10 Crustaceans 98 



Starfishes 8 Trilobites 466 



Ophiurans 1 Eurypterids 15 



Echinoderms 179 Simuloids 7 



Worms 37 Insects 53 



