702 The American Naturalist. [August, 
S Sb As Bi Fe Co Ni Sp. Gr. 
16.22 42.93 10.28 .68 AO. 133 ' 28.91 6.488 
A rose-red tourmaline from Urulga, Siberia, has a composition 
corresponding to the formula 12 SiO,, 8 Al,O,, 3 B,O,, 2(FeO MnO), 
Na,O(K,O Li,O), 3 H,O. Genth” has revised Kerr’s report on the 
minerals of North Carolina, and has published the amended and 
enlarged revision as a Bulletin of the Survey. All the minerals known 
to occur within the State are mentioned and described briefly, and a 
synopsis of the mineral wealth of the different counties is given in tab- 
ular form. The sixth part of Hintze’s Handbuch der Mineralogie 
has recently appeared. It discusses serpentine, nepheline, kaolin, 
sodalite, cordierite and related minerals. A series of new measure- 
ments of wollastonite™ crystals from Vesuvius adds considerable to our 
accurate knowledge of their morphological characteristics. 
“1Stchusseff. Ib., xx, p. 93. 
2Bull. U. S. Geol. Survey No. 74, Wash., 1891. 
3Zeits. f. Kryst., xix, p. 604. 
