Geology and Mineralogy. 231 
the individual minerals by Prof. Leonhard are concise and yet co 
pete and doubtless the work will prove highly es oe thos 
ho have occasion to use it. 
vol, Studien aber Mineral- Pseudomorphosen. Inangura- Di 
sertation von F. E. Guinirz. 56 pp. 8vo. Stuttgart, 1876.— 
Geinitz has subjected a large number of pseudomorphs pa a carat 
study, particularly by means of the microscope, and the results of 
his work will be read with interest. The pamphlet is iustrated 
ep : pate ihn a mids s of figures 
inerals.—Prof. C. U. Suzparp has named and par- 
aly des dccoribed the following new species: 
mite. Occurs in small irregular patches scattered 
throngh 2 a rien ochery aggregate, proceeding from the decomposi- 
Mas 
tion of several zinc ores. Massiv gee peo with an even or 
conchoidal Pasture! Color w swliike,: 25 - 
es not adhere to the tongue, but ne a feeble clayey se Po on 
being breathed upon. uses readily to an opaque enamel, 
Composition SiO, 35°64, AlO, 11°70, ZnO 32°48—36, H,O 14°80 
~—19°88=99°70. Locality, Sterling Hill, 
Keatingine. Considered “ probably a new W species.” Closely 
resembles fowlerite in crystalline —- but angles obtained on 
cleavage prisms 64° and 116°. Does not lose luster on weather- 
g H=45—5, G.=3-33. B. B. fined to a reddish semi-trans- 
Parent glass, Composition SiO, 47:8, MnO 27-7, ZnO 5°6, CaO 
180, H,0 0-s=99-9. Locality, Franklin, N. J. , where it was found 
amass of yellow garnet. 
Caleozincite, Massive, fine-granular ; mien ee with fibres 
of asbestus and sussexite. Luster seoinibe olor light senree 
ie, treak lemon-yellow. ‘Translucent. H.=3°5, G.=: 
ervesces slightly with acid. B. B. ‘ blackens. * Composition 
Zu0 81°00, CaO 7°56, CO, 5°80, H,O 4:26, MnO tr=98°62. 
of = eens velit x: Failita 
amine. Forms irre pa seams and masses sometimes a 
i thick» 4 the lebeaddnctiie at Pelham, Mass. Resembles a 
Serpentine Ayers pre without luster. Powder dark 
Seemed H.==5°0, G.= 3-2, B. B. infusible. Compo- 
= SiO, 38-40, al0, "2°80, Feo 15°52, (MgO 39°88), H,O 3°40 
“Pra Shepard has also published a catalogue (8 pp.) of the 
emai found within seventy-five miles of Amherst Spallees, 
