244 Pibld Mi Natural Hi ports, Vol. 111. 



grouped seven 



TiiP Of s: 



.. B mc 

 I ammonj ire 



an the process. 



Tv. i .11 illus' 



which was Eorm< i in a large upri in the 



the hall. A: in- 



■ . ills of the hall 

 Dollar in design to those empl the mineral 



I. As 1 hting and capacity of the 



■s in the order 

 ere made. Two wall cases eighteen 

 im ith wall conl J, includ- 



mined al i. In 



tin ed such other specimens as were too 



the shallower cases. These Specimens include blocks 



oi gypsum, epsom salt, rock salt, and phosphate rock. The remainr 



inches deep. Of these the borate and nitrate 

 cupies half of the case and the other hah" is occupied by the 

 salt collection. Magnesian and similar minerals of economic value oc- 

 cupy about a qu i wall id the remaining three-quarters 

 contain the sulphurs. Abrasives an I ) their uses 

 ckx 1 case and a h id half a wall case contains the collec- 

 tions oi crude asbestos. Mica o X and the phosphates, 

 ling to a mineral don, occupy 

 ft and nearly half of another. Anion- minor details of 

 install nail it may b< L that fl . -k tra; -been 

 | tor ; ilar exhibits in place of the buff 

 rly used. An in 1 numl >d specimen 

 »een em; i a n< D of label holder is 

 :• all labels m the wall C I Hall So has been thoroughly 

 I and ; I iantled 



»f the collections. 

 ,n as • id that o\ a single ad litional 



rmanenl 3 will : led 



r all of the colle< ti •: the Department. Comparing th< ;':>u- 



n of the i ith th. ting at the time of the 



opening ol hat six halls are now devoted to 



the paleontological collections instead of three, as at that time. 



