258 MINERALOGY. 



Poonah, just as the Oberstein specimens were brought to light in cut- 

 ting the llhine and Nahe line. P. W. E, 



Scheerer, Dr. Theodore. An Introduction to the use of the Mouth- 

 blowpipe; to which is added a description of the blowpipe 

 characters of the more important minerals, by Henry F. Blanford. 

 Ed. 3. Pp. X, 234. 8vo. London. 



Schrauf, Prof. A. [Roselite.] N. Jahrh. Heft i. p. 55. 

 Maintains that E-oselite contains 10 molecules of water. 



. TJeber Wapplerit. [Wapplerite.] N. Jahrh. Heft iii. pp. 290- 



293 ; woodcut. 



Describes the crystallographic characters of Prenzel's new species 



Wap'plerite. [See Geological Recoed for 1874, p. 232.] 



Schrockinger, J. Frich. von. Ein neues fossiles Harz aus der 



Bukowina. [New fossil Eesin.] Verh. k.-lc. geol. Reichs. pp. 134- 



139 ; also noticed in Journ. Soc. Arts, vol. xxiii. no. 1194, p. 941. 



Occurs in a laminated sandy bed of the Carpathian sandstone series 



(Cretaceous?). Differs from amber in many respects : the colour is 



bluish-red, meltiug point 326^ ; composition C^^H^gO^. It is too 



tender to be worked in the lathe, &c. Analyses from several localities 



are given ; the name Schraufite is ]3roposed. E. B. T, 



Schr"der, Dr. H. TJntersuchungen liber die Yolumconstitution 

 einiger Mineralien. [Volume-constitution of certain Minerals.] 

 K Jahrh. Heft v. pp. 473-487. 



Seligmann, G. [Native Eed Lead.] iV. Jahrh. Heft i. p. 46. 



Eecords occurrence of native minium at the George Mine, Horhausen. 

 The mineral occurs partly earthy, and partly in distinct pseudomorphs 

 after white lead-ore. P. W. E. 



Senft, Dr. Ferd. Synopsis der Mineralogie und Geognosie. I. Abth. 

 Mineralogie. Pp. 931 ; 580 wood engravings. 8vo. Ha^iover. 



The first section of the third part of Leunis's Synopsis of the Three 

 Kingdoms of Nature is devoted to Mineralogy. It was originally 

 worked out by Adolph Eomer; and the present is a new issue. P. "W. E. 



Silvestri, 0. La dissociation chimique et les phenomenes vol- 



caniques. [Chemical Dissociation and Yolcanic Phenomena.] 



Mev. Sci. pp. 565-568. 



Announces the discovery, on lava from the Etna eruption of 1874, 



- of a body having a metallic lustre, and of the composition Ee* N ^, in 



the form of scales adhering closely to the lava. E. B. T. 



Sipbcz, L. Leber den Lievrit. [Lievrite.] Min. Mitt, Heft ii. 

 pp. 71-74. 



The mean of 4 analyses of well-formed unaltered crystals of lievrite 

 from Elba leads to the following empirical formula, which agrees with 

 that established by Stiideler, and does not support Eammelsberg's 

 view of the constitution of the mineral : — Si^. Fe'\ . Ee'"^ . Ca^. H^. 0^^. 



