11 G ANNUAL RECORD OF SCIENCE AND INDUSTRY. 



presented to Denmark, upon whose territory it had been 

 found. The masses are mostly of iron, and exhibit all the 

 usual characteristics. They were found lying loose on the 

 shore, but resting upon basaltic rocks, supposed to be of the 

 miocene age, and in which they appear to have been imbed- 

 ded, possibly by having fallen when the rock was still in a 

 molten condition. Although these masses were found loose 

 on the shore between high and low water mark, they are de- 

 composing very rapidly since they have been transferred to 

 Stockholm ; so much so that it has been found almost impos- 

 sible to preserve them indeed, it has been actually proposed 

 to immerse them in alcohol for this purpose. Mr. Maskelyne, 

 of the British Museum, has suggested that this destruction is 

 due to the absorption of chlorine, and advises the application 

 of a varnish of shellac, dissolved in nearly absolute alcohol, 

 and applied hot. 1 A, November 17, 1871, 239. 



ROSTHORNITE, A NEW FOSSIL RESIN. 



A new fossil resin, named rosthornite, is described by Hofer 



as occurring in the coal of the Sonneberg, in Carinthia. This 







has a fatty lustre, a brown color with garnet-red gloss, wine- 

 yellow by transmitted light, and a light brown to orange-yel- 

 low streak. When heated in the air it gives off white vapors 

 having an aromatic odor, and burns with a smoky flame with- 

 out leaving any residue. In chemical composition this min- 

 eral approaches most nearly to enosmite, and still more to the 

 fossil resin of Girona, in New Granada. This substance can 

 not be properly assigned to any of the groups already estab- 

 lished among the fossil resins, but seems rather to conform 

 to the type of a solid resin, rich in carbon but poor in oxy- 

 gen. 21 A, December, 1871,1174. 



NEW MINERALS. 



The discovery of several new minerals has lately been an- 

 nounced. Among them may be mentioned Julianite, a species 

 somewhat resembling fahlerz, occurring in small groups of 

 cubic crystals of a dark gray color, and containing As 2 Cu 3 S 6 , 

 part of the arsenic being replaced by antimony and iron, and 

 part of the copper by silver. The ore was formerly found in 

 the Friederike-Juliane Mine, at Rudelstadt, in Silesia. An- 

 other species is Beyrichite, from the Wester w aid. This occurs 



