Bisulphide of Carbon as a Solvent 135 



associated, and the nature of the adherent matrix, appear to 

 indicate that its occurrence belongs to a class of natural 

 facts in which the existence of metallic iron, zinc, silver, and 

 copper in basaltic rocks are included. 



There are rich copper mines in the basaltic rocks of Lake 

 Superior, and derived from the basalt of Footscray a sample 

 of native copper has been found : of course the latter is 

 interesting scientifically, but what I wish to say in con- 

 clusion, is, that this specimen found at Footscray is but an. 

 isolate example of what elsewhere exists on a grand scale, 

 and that outlay of capital in searching for a copper mine at 

 Footscray, or a zinc mine at Brunswick, would be hardly 

 warranted by the limited discoveries already made. 



Art. XLIV. — On Yan Yean Water. 

 By Sydney W. Gibbons, Esq. 



[Read Sth July, 1872.] 



This paper consisted of a few notes descriptive of the 

 results of a microscopic examination of Yan Yean Water. 



AnT. XLV. — The Use of Bisulphide of Carbon as a Solvent 

 in the Bxtraction of Vegetable Oils, &c. By J. Cosmo 

 Newbery, Esq. 



[Read 12tli August, 1872.] 



My paper this evening is a summary of a series of experi- 

 nents made in the chemical laboratory of the Industrial and 

 Technological Museum by Mr. J. L. Graham, who has been 

 s-ttending the chemical class devoting his time to the 

 inalyis and manufacture of manures, and the extraction of 

 valuable substances from the refuse of our factories. 



Mr. Graham does not claim any new chemical or manu- 

 facturing discoveries ; yet I think his practical results are 

 of sufficient importance from an industrial point of view, to 

 be brought before this Society, and so be made generally 

 known, especially at this time when so much attention is 

 being given to the question of novel industries. 



Amongst other substances the refuse of the meat pre- 

 serving companies was experimented upon, with the view 



