132 EEPORT ON NATIONAL MUSEUM, 1885. 



and will be until an assistant ia provided by the Museum, as the 

 assistants I now have give their time to work ,on the collections of the 

 Geological Survey. As soon as the study of the latter collections is 

 completed, they are transferred to the National Museum, and in this 

 way the Museum receives the 'benefit of all the work done in this de- 

 partment. 



The principal study has been that of the Middle Cambrian faunas. 

 Over 80 species have been identified and illustrated, and the work will 

 be continued until all the known species have been examined. The 

 result will appear as a " Second Study on theFaunasof North America" 

 some time during the year 1886. 



KECOMMENDATIONS. 



I repeat my recommendation of the last report, that an assistant cura- 

 tor be employed by the Museum, whose time can be given entirely to 

 the care of the collections. This is necessary, in order to bring up the 

 old collections to a satisfactory condition, and to record and install the 

 accessions promptly. 



More room is also required for the rough work on the collections. 



