58 



COMPARATIVE ZOOLOGY. [Jan.76. 



Plate I. Yievr of the wing, now partly built, together with its proposed 

 addition and the corner-piece joining it to the main building. In the sketch 

 here given, the main building is seen extending to the southern limit of the 

 central segment. The view is taken facing the north-west corner of the 

 Museum. 



Plate II. Shows the general ground-plan of the whole building ; the 

 darkly shaded portion is completed ; the dotted part forms the proposed addi- 

 tion. Adjoining the general plan is a cross-section of the building on the 

 line A B. 



The basement will contain, as at present, rooms mainly devoted to the 

 storage of alcoholic specimens and the work-rooms for the more bulky alco- 

 holic collections. • It contains, also, a room for plaster-casts and general work, 

 — three rooms for the use of the anatomical and physiological departments, 

 the boiler-room, coal-bin, and proper accommodations for aquaria, both 

 marine and fresh-water, as well as suitable quarters for live-stock. 



Plate III. Shows the plan of the first story and first story gallery, the 

 latter, except iu two cases, the synthetic and lecture rooms opening into the 

 rooms below, having for the sake of greater economy of space been floored 

 over so as to gain very conveniently situated work-rooms for the entomo- 

 logical, the geological, and palaeontological departments, as well as central 

 rooms for a general library and a Curator's room. 



The first story immediately under the gallery floor contains exhibition- 

 rooms and work-rooms for the geological and palseontological department, so 

 as to retain the heavy material near the bottom of the building. The syn- 

 thetic room, giving a general synopsis of the arrangement of the Museum, is 

 placed on this floor opposite the main entrance of the wing. 



In the corner-piece we find, in addition to the hall and lecture-room, four 

 smaller rooms for the use of advanced students and professors. 



Plate IV. Shows the disposition of the main floor of exhibition rooms, 

 partly for systematic and partly for faunal collections. These rooms, all 

 having a gallery, occupy the whole of the second story. The central space 

 of the large hall in the corner-piece is destined to receive casts or originals 

 of the larger fossil vertebrates. 



The attic story has no gallery ; it contains in the wing three exhibition 

 rooms for the anatomical and physiological departments, and six work-rooms 

 for the general use of the assistants of the Museum, to be distributed accord- 

 ing to our needs. The corner-piece is entirely devoted to rooms destined for 

 the teaching done in the different branches of natural history at the Museum. 



Owing to the facility with which any section of the proposed building can 

 be added without interfering with the existing conditions of things, addi- 

 tional room can always be provided when needed for any department or 

 branch thereof, as rapidly as it outgrows the quarters assigned to it. 



