364 report— 1878. 



Olivine appears to be the prevailing silicate in the meteorite ; in 

 addition to bronzite there appears to be a little augite and felspar, 

 although their presence coiild not be recognised. We find, moreover, 

 a small amount of a carbonaceous ingredient, to which, as well as to the 

 magnetic pyrites, the blackish grey colour of the matrix is probably due. 



A plate showing six sections of the mineral constituents of this 

 meteorite accompanies Tschermak's paper. 



Found 1872. — Neuntmannsdorf, near Pima, Saxony* 



This mass of meteoric iron was found in 1872, and a superficial ex- 

 amination of it by Lichtenberger was made in the following year 

 (' Sitzungsber. der Isis,' Dresden, 1873, p. 4). It is a rounded block of 

 malleable iron, weighing 25 pounds, and covered with a blackish-brown 

 crust of oxide. Like the meteoric irons of Ovifak, Disko Island, Green- 

 land, and many others, it contains chlorine, and in damp warm air rapidly 

 oxidises and exfoliates. The metal has the grey colour of iron, does not 

 exhibit the Wiedmann-stattian figures, and has a specific gravity of 6'21. 

 Geinitz finds the composition of this iron to be — 



Iron 9304 



Nickel 616 



Phosphorus 0'22 



99-42 



In the iron are many rounded, sometimes elongated, hollows filled 

 with a yellowish-brown mineral having the specific gravity = 3'98. This 

 on analysis was found to consist of — 



Iron 63-82 



Sulphur 37-36 



101-18 



which showed it to be troilite (iron monosulphide), and to accord in 

 composition with the sulphide found in the meteoric iron of Seelasgen. 

 One cavity was filled with what appeared to be the same mineral in a 

 crystalline form. This is the first occasion where troilite has been met 

 with otherwise than massive. 



1875, March 31st. — Zsaddny, Temesvar Comitat, Banat.\ 



We directed attention to the fall of this meteorite in the Report for 

 the year 1875. Dr. Cohen, of Heidelberg, received some fragments of 

 the stone from Dr. Babesin, and he has recently published a paper on the 

 results of the physical and chemical examination of them. 



The crust of the stone has a brownish black colour, and is ^ to \ mm. 

 in thickness ; it has the appearance as though it had not been subjected 

 to so intense a heat as that usually developed during the fall of a meteorite. 

 The finely grained light grey matrix encloses granules of magnetic pyrites 

 (troilite ?), granules and plates of nickel-iron, and numerous dark grey 

 crystalline spherules, averaging ^ mm. in diameter ; one little sphere had 

 a breadth of 3^ mm. They have an excentric-radiate or contorted-radiate 



* F. E. Geinitz, ' Jahrbuch fur Mineralogie,' 1876, 608. 



f E. Cohen, ' Verhandl. Naturhis. Med. Vereins zu Heidelberg,' 1878, II. Heft 2. 



