152 
The Australasian Scientific Magazine [Nov. i, 1885. 
TASMANIA. 
ROYAL SOCIETY. 
The monthly meeting of the Fellows of the Royal Society of Tasmania 
was held at the Museum-building on Monday evening, September 7th, 
1885. Mr. James Barnard, vice-president, occupied the chair, and about 
40 gentlemen were present. 
In the absence of the hon. secretary (Dr. Agnew) who was profession- 
ally engaged at New Norfolk, the secretarial duties were performed by the 
curator, Mr. Alexander Morton. 
The following gentlemen, who had been previously nominated as 
Fellows, were ballotted for, and duly elected as Fellows of the Society, 
viz : — Messrs. Chas. W. Garrard, B.A., Lond., W. Eldridge, W. Duffy, 
Joseph Tasman Facy. 
Papers. 
An interesting paper entitled, “ Contributory information regarding the 
tin ore deposits at Mount Bischoff, Tasmania,” by Baron Von Groddeck, 
chief mining councillor of the Hartz mining districts, and director of the 
Royal Prussian Academy of Mines at Clausthal, Germany, was read by the 
Curator, in the absence of the translator, Mr. Thureau, who had telegraphed 
to say that he was unavoidably detained in the country, and so was pre- 
vented from attending the meeting of the Society. In a letter from Mr. 
G. Thureau, F.G.S., to the Royal Society, he stated that the above paper 
had been published in the journal of the German Geological Society, of 
1884. It was a subject he (Mr. Thureau) thought would be of great in- 
terest to the Fellows of the Society, so he had, therefore, translated Mr. 
Groddeck’s paper. The Baron states that the Royal Academy of Mines 
at Clausthal was some time ago placed in possession of a very fine collec- 
tion of Australian ores, the collection being presented to the Academy by 
Mr. M. Wajenknecht, a resident of Tasmania. Amongst the samples were 
found a number of specimens of tin ore, together with the rocks and the 
minerals said to be associated with same from Mount Bischoff. The Baron 
says the series particularly interested him on account of a piece of sup- 
posed quartz-porphyry, which rock, it was represented, is associated (ac- 
cording to the description of Mr. S. H. Wintleand Mr. Geo. H. F. Ulrich) 
with those tin ores, and also because of some peculiar, dense, greyish-blue 
coloured masses of mineral which most frequently are found to enclose 
those tin ores. The Baron gives a very careful analysis that he made of 
the specimens he had received. 
Mr. C. P. Sprent said the paper was a most interesting contribution, but 
it raised so many unexpected new points that it would require very careful 
study before the Fellows could discuss it. Fie would have liked to have 
seen some of the specimens which were sent to Germany', because since 
