402 Scientific Intelligence. 
12. Gibbsite and Wavellite—Hermann (Bull. Soc. Impér. Nat. 
Moscow, No. 4, 1868, 496), has analyzed a grayish pearly mine- 
ral, occurring on limonite, i in Chester Co., Pa., in thin crusts, delt- 
aaaeky concretionary under a lens. It has a hardness of 3°0 
2°35, and is subtranslucent. He obtained 
Ray Hi 33-45, Si 1-50, B 0-91, Mg, #e trace=99-70. 
Hermann has obtained for the composition of the Wavellite of 
the danke region (ib.): 
32°70, Al 35°83, A 28:39, #e 3-08, Fl #.=100, 
digi ge with the analysis by Genth. He found G.=2°30 
The Gibbsite Dyveergye of Villa ae afforded Hermann 
(ib.): 0, Pe ‘2-00, H 3440= 
| ula 
metal including the Columbium and related metals; for Samars- 
kite and Alschynite, & R; for Tantalite Re R. Hemakes the oxyds 
R, #, 
14, Minerals of EHiba—Mr. Antonio p’Acutarpt of Pisa, has 
described the crystals of several of the minerals of Elba, in 
an article He in the Nuovo Cimento, II, iii, Feb., 18% 0. 
Si 55-15, x 27°72, faa Oa 5-10, K 115, H -20= 99°32. 
It is soa ine Bg in aspect and feel; milk-white, with small black and 
-red spots; opaque, but becoming translucent in water; 
15. Mineralogische Notizen, of F. cerreeiaeer —The ninth 
number of Hessenberg’s admirable erystall memoirs oD 
minerals has recently — published by the a es a Nat. 
“Gesellschaft in Frankfort on the Maine (vol. vii, p. 257, 1870). It 
contains and acuueniets, with various observations, 02 
the species: Calcite from Lake Superior, Reissite of v. Fritsch, 3 
rhombic ps @ new mineral) from Santorin, Wollas 
ae Pe : +o 
