MINERALS FOR THE PARIS EXHIBITION. GILPIN. 271 



The Windsor Plaster Company also show the following 

 products : (1) "Calcined plaster " used for putty coating, finishing, 

 etc. (2) " Selenite cement " used for under coating, etc. (3) 

 " Land plaster," ground gypsum, used for fertiliser manufacture, 

 stables, etc. 



Tripolite. 



Of late years considerable attention has been paid to the 

 infusorial earth deposits of the province, and to deposits of very 

 fine grained quartz available for polishing, insulating, and other 

 purposes. 



Among the localities represented may be mentioned River 

 Dennys, Inverness Co., where the Cairo Polishing Company are 

 doing development work ; Bass River, Colchester Co., where 

 extensive works are curried on, the shipments for the last fiscal 

 year amounting to 21 tons. The Bass River Infusorial Earth 

 Company procure the raw material from Bass River Lake, 

 where it is found in a bed about three feet thick, and purify it 

 in a large plant, which has been in operation for over two 

 years. 



The Victoria Tripolite Company have commenced extensive 

 operations near St. Ann's, in Victoria County, and are making a 

 specialty of insulating material. 



Molybdenite occurs at many points in the Province, but as 

 yet deposits of workable size have not been reported. New 

 Ross, Lunenburg, yields very large and fine crystals. A sample 

 is shown from this district. A few tons have been shipped 

 from Gabarus, Cape Breton County. From the Margaree 

 district, Inverness County, are shown samples of ores of 

 Tungsten, fuller reference to which will be found in these 

 Transactions. 



Antimony. The sulphide of this metal was some years ago 

 worked intermittently at West Gore, Hants Co. The Messrs. 

 McNeil, of Halifax, have lately given some attention to the 

 district, and have proved three leads. The ore carries consider- 



