2504 



Journal of Applied Microscopy 



the center. Such a partition can be carried from end to end, or at the free or 

 distal end cross shelving can be introduced, and may be of wood or painted 

 canvas. 



Fig. 48. — Pier wall cases of identical size. Bird gallery, New- 

 York Museum. 



The varying forms, dimensions, and especially window spacing permit or 

 exact corresponding variations in the disposition and size of pier cases. Figure 

 47 shows the pier broad and narrower and adapted for groups in the Mammalian 

 exhibits of the New York Museum on a gallery floor ; Figure 48, the pier cases 



Fk;. I.'. Narrow pier wall cases. Peruvian Hall, 

 New York Museum. 



of average identity in form and size in the Bird gallery of the north wing of the 

 same museum ; and Fig. 49, the pier and interposed cases (free from the walls 

 and opposite the division frame of a double window), used serviceably in the 

 Peruvian hall of the same institution. In the first the broader cases are eight 

 feet in width, and the narrower four, while all alike, are about nine feet ten 



