410 



Proceedings of the Royal Physical Society. 



peared to contain such general information as might interest 

 the members of the Society, especially as it was accom- 

 panied by specimens of the rocks and clays and maps of the 

 district. Mr Smith writes : — 



" The greatest difficulty I have experienced has been to 

 get a man who knew the geological names of the different 

 strata ; but as your letter suggested, that I should send 

 home some specimens of the various strata, I shall do so by 

 M'Mell, who goes by this mail, and this will relieve me 

 from the difficulty. By a map of the Ballarat mining district, 

 which I shall also forward, you will see accurately laid 

 down by the various mining surveyors (and tinted blue) the 

 various leads that have been worked and traced, and the 

 quartz reefs that have been discovered (coloured red). You 

 will also observe on the map the course of the Yarrowee 

 creek, which runs along the foot of the high land on which 

 Ballarat West is built. 



Fig. 1. — Diagram section of ground on which Ballarat West is built. 



" There is no section on the map, but as nearly as possible 

 the section from the Yarrowee up to the swamp will be as 

 shown in the annexed diagram, and you will get the correct 

 distance from the map. By this you will see that, instead of 

 the swamp being lower than the town, it is situated on the 

 highest part of Ballarat ; it is about eighty-five feet above 

 the level of the creek. You will also observe, that far the 

 greater number of the leads which have gone to form the 

 main or Golden Point lead, have taken their rise on that 

 side of the Yarrowee on which Golden Point is situated, 

 the principal ones being the chain of leads beginning at 

 New Chum and One Eye, and receiving many small ones 

 from the east, or rather north-east, of the Golden Point, 

 and White Horse ranges, called on the map Yuille's range. 

 After receiving all the leads from the range, it forms a 



. ... " '-J 



