r 



IflNERALOGT. 243 



Greenwood, W. H. A Manual of Metallurgy. Vol. ii. 8vo. London. 



and Glasfjow. 

 Contains notices and analyses of ores. [Not original.] 

 Groth, P. Ueber das Studium der Mineralogie auf den deutschen 

 Hochschulen. [The Study of Mineralogy in the German High 

 Schools.] Pp. 22. 8vo. Strassburg. 

 Gurlt, Dr. Ueber ein neues Steinsalz-Yorkommen bei Hanigsen, 

 unweit Celle in der Provinz Hannover. [New Occurrence of Rock- 

 salt near Hanigsen in Hanover.] Verh. nat. Ver. preuss. Rheinl. 

 32 Jahrg. p. 76. 

 Gurney, Rev. H. P. Crystals. Proc. W. Lond. Sci. Assoc, vol. i. 



pt. 1, pp. 34-37 (abstract). 

 A few of the leading principles of crystallography noticed. 

 Hahn, Dr. P. D. Phosphorescence of Minerals. Cajpe Monthly 



Mag. vol. x. no. 59, pp. 285-293. 

 Gives a sketch of the history of phosphorescence ; describes the phe- 

 nomena as produced by heat, light, electricity, and friction ; refers to the 

 physical explanation of the phenomena ; and gives a popular account 

 of the author's researches on phosphorescence by heat. [See also Geo- 

 logical Record for 1874, p. 235.] F. W. R. 

 Hawes, George W. On Diabantite, a chlorite occurring in the trap 

 of the Connecticut Valley. Amer. Journ. ser. 3, vol. ix. pp. 454- 

 457. 

 A chlorite occurring in the amygdaloidal cavities of a diabase from 

 the Farmington Hills was found on analysis to resemble the mineral 

 described by K. K. T. Liebe, under the name of Diabantachroniiyn, 

 which the writer has modified to the form Diabantite. F. W. R. 

 Contributions from the Sheffield Laboratory of Yale College. — 



No. xxxiv. On Zonochlorite and Chlorastrolite. Amer. Journ. 

 ser. 3, vol. x. pp. 24-26. 

 Analyses of both minerals are given. That of zonochlorite shows it 

 to be a very impure variety of prehnite ; and that of chlorastrolite, 

 notwithstanding a higher sp. gr., would seem to lead to a similar con- 

 clusion. Both minerals come from amygdaloidal trap in the Lake 

 Superior region. G. A. L. 



Hayes, Dr. A. A. On the Presence of Vanadium in Roeks. Amer. 



Journ. ser. 3, vol. x. p. 61. 

 Note of paper read before the Academy of Sciences, Boston. 

 Helland, A. Bergbeg, Anthracit og nogle andre Kolholdige 

 Mineralier fra Ertsleiestcder og Granitgange. [Asphalt, Anthracite, 

 and other Carbonaceous Minerals from Ore Deposits and Granite 

 Veins.] Geol. Foren. Stockholm Forhandl. Band ii. 

 Particulars of occurrence and relative age, with analyses from 

 localities in Norway and Sweden. A series of minerals approaching 

 the brown coals in composition are referred (with reservations) to 

 huminite (Ekman). K. M. 



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