84 



South Australia, by the Rev. J. E. T. Woods, F.R.G.S., &c., &c., from the 



author. 



0. From J. J. Bennott, Esq., British Museum, 1 vol. of " The Works 

 of Ilohert BroANii," bound in cloth. 



7. From the Koyal Astronomical Society, INIemoirs of the Society, vols. 

 9 to 34 inclusive. Monthly notices of the Society, vols. 8 to 18 inclusive. 



The Secketauy brought under the notice of the Fellows the very 

 handsome donation of books from the Royal Astronomical Society (see 

 presentations), which by supplementing those ah-eady in the library will 

 complete our series of these valuable works from the very beginning of 

 the Royal Astronomical Society in 1822. He further informed the meeting 

 that in future all the publications of this society would be forwarded to us 

 as issued. 



Mr. M. AxLPORT moved,and Mr. Gould seconded :—" That a special 

 vote of thanks be accorded to the Royal Astronomical Society for their very 

 liberal donation." The motion was unanimously agreed to. 



Dr. Agnew mentioned that the collection of minerals for which an order 

 had been sent some time since to Mr. Tennant, of London, had arrived, 

 and were in course of arrangement by Mr. Gould. 



]!ilr. Gould presented the society with a report upon the geological 

 structure of the country near Ilfracombe, and in doing so made a few 

 remarks on the leading points referred to in the report. He spoke hope- 

 fully of the prospect of making some combination of Pyxohgneous Acid 

 Works with others for reducing the iron ore by means of the charcoal pro- 

 duced in large quantities, and available at a low rate. He sketched out 

 the leading characters of the various formations occurring in the district, 

 pointing out the economic applications of which the Serpentine was 

 Busceptible, bl)th as an ornamental building stone of great beauty and 

 value, and as a source of sulphate of magnesia. And referring to the 

 various iron ores of which he had exhibited specimens at the last meeting 

 of the society read the following copy of a report received from IVIr. 

 Foord : — 



JNIelbourne, 86 Elizabeth -street, 

 7tb June, 1866. 



Sir,— I have examined the sample of iron ore submitted for assay, and I now 

 beg to report the following results : — 



The external characters of this mineral are those of magnetite, dt magnetic 

 oxide of iron ; it conforms pretty closely to the fibrous variety described by 

 Dufresnoy. Hardness over 6°, gravity 4*98, streak black, obedient to the 

 magnet, and susceptible of permanent magnetism. 



Like most of the examples of this mineral it has the sesquioxide of iron 

 somewhat in excess of the formula for magnetic oxide, this excess appears to 

 exist in the sample, partly or whoUy as limonite. 



Protoxide of iron 30 547 



Sesquioxide ditto 66'15l 



Together 96'698 



Difference of alumina, silicic acid, and water 3*302 



In parts lOQ-OOO 



Preceding determinations were made by permanganate of potassium. The 

 sample is free from other constituents such as are occasionally present in 

 magnetite. 



Metallic iron, per cent 70"00 



Existing as protoxide 23*76 



Existing as sesquioxide 46*30 



70*06 

 If this mineral exists in quantity, and under circumstances otherwise favour- 



