202 



BULLETIN OF THE ESSEX INSTITUTE. 



Serpentine, Foliated, 



Serpentine, Massive, 



Shiller Spar, 



Siderite, 



Siderite, bronze var., 



Silicious Limestone, 



Silicious Sinter, 



Silver, 



Sinter, Silicious, 



Smoky Qnartz, 



Soapstone, 



Sodalite, . 



Spar, Brown, 



Spar, Calc, 



Spar, Dogtooth, 



Spar, Shiller, 



Spar, Tabular, 



Spathic Iron, 



Specular Iron, 



Sphalerite, 



Sphene, . 



Statuary Marble, 



Steatite, 

 Stibnite, . 

 Tabular Spar, 

 Tale, 



Tetrahedrite, 

 Tin Ore, . 

 Titanic Iron, 

 Titanite, . 

 Topaz, 

 Topaz, False, 

 Tourmaline, 

 Tremolite, 

 Tripolite, 

 Turgite, . 

 Uralite, . 

 Vesuvianite, 

 Wad, 



Wernerite, 

 Wollastonite, 

 Xanthosiderite, 

 Yellow Ochre, 

 Zinc Blende, 

 Zircon, . 

 Zoisite, . 



