5 



6. The First Floor plan. — The Paleeontological Exhibition 

 Rooms and work-rooms of the North Wing and the Synoptic 

 Room ; the Geological and Palseontological Laboratories of the 

 northwest corner piece, and the large Lecture Room of the 

 Geological Department. 



7. The Second Floor plan, containing in the North Wing 

 the Entomological Department, the special collections, the room 

 for special students of the Geological and Palseontological De- 

 partment, and a part of the Librar}^, which is continued in the 

 northwest corner piece, which also contains the Curator's Room 

 and the Lithological Laboratories. 



8. The plan of the Third Floor, which shows the main 

 Exhibition floor, containing in the North Wing the Systematic 

 and Faunal Collections ; in the corner piece, the Atlantic and 

 Pacific Faunal, and the Geological and Geographical Exhibition 

 Rooms. 



9. The plan of the Gallery and Fourth Floor shows the 

 continuation of the Systematic and Faunal Collection in the 

 North Wing, the Zoological Laboratories in the northwest corner 

 piece, and the Geographical Laboratories. 



10. The plan of the Fifth Floor, showing in the North 

 Wing the storage and work rooms of Vertebrate Palseontology, 

 and of skeletons and skins of birds and mammals, while the 

 corner piece and the extension on Oxford Street contain the 

 storage and work rooms for fish and reptile skeletons, a large 

 Lecture Room, and the storage and work rooms of the other In- 

 vertebrates. 



The arrangement shown in these plans does not differ 

 materially from that published in the Twentieth Annual Report 

 (1884-85), with the exception that the Geological and Geo- 

 graphical Departments now occupy their final quarters, while 

 the collections of dry invertebrates have been moved to adjoin- 

 ing rooms, leaving the greater part of the fifth floor of the North 

 Wing for the development of the fossil vertebrate collection. 



Professor E. B. Wilson, of Bryn Mawr, was the only investi- 

 gator at the Newport Marine Laboratory. He passed a short 

 time there this summer, and collected material for his work on 

 Polygordius. The Museum students and assistants, Messrs. E. 

 R. Boyer, C. B. Davenport, and W. M. Woodworth, as well as 

 Dr. Mark, availed themselves of the facilities offered by the 



