306 Kenneth A. Miclle: 



To No. 1 bottle, 1 "-m. of the mineral was added. 



If any intermediate or greater quantity of mineral was needed 

 to fix a certain point, e.g., 60 or 200 gms., another bottle was 

 added to the series as required. 



With the proportion of 1 gm. blende to 5 gms. oil, on 

 agitating, some of the blende floated on the solution, being 

 buoyed up by the oil and entangled air bubbles. On standing, 

 all the mineral sank to the bottom of the bottle, carrying large 

 " blobs " of oil with it. The product formed by the oil and 

 blende was oily and non-miscible with the solution. An excess 

 of oil floated on the surface of the solution and adhered to the 

 surface of the glass above the level of the solution. 



With 5 gms. blende much oil was carried down with the 

 blende, but on standing some of it broke away and came to the 

 surface of the solution again, leaving an oily mass non-miscible 

 with the solution. An excess of oil showed on the surface and 

 adhering to the glass above the level of the solution. 



With 10 gms. a heavy, freely flowing oily magma was formed 

 beloAV the solution. The excess of oil still showed on the surface 

 of the solution. 



With 20 gms. of the blende the oily product became more 

 putty-like in appearance, and moved less freely than with 10 gm. 

 An excess of oil still showed on the surface of the solution and on 

 the bottle. 



With 30 gms. a putty-like plastic mass was formed by the 

 blende and oil, w^hich was very difficult to break up on agitation. 

 A slight excess of oil still showed on the surface of the solution. 



With 40 gms. the product broke up into large rounded lumps 

 on agitation. No excess of oil showed on the surface of the solu- 

 tion or on the bottle. On violent agitation a few bubbles of air 

 became attached to the mass. 



