136 Mr. William Phillips on the Vans of ComwalL 



mostly north and south, but that he hjfd not known * any produ- 

 cing that mineral of more than fourteen fathoms deep.' The mine 

 called Huel Boys, which formerly produced the triple sulphuret, 

 is now worked for antimony, which occurs in bunches of various 

 dimensions in a vein, the direction of which is nearly north and 

 south, and of about five feet in width. The antimony is accom- 

 panied by blende only, and is not now found in a state of crys.- 

 talUzation. The country through which the vein runs is schist. 



Slide. 



-' Veins, not of a metalliferous kind, but which contain gossan, 

 ■xir fiucan, are sometimes found running north and south, with an 

 «ast or west underlie, generally very quick, one of which will be 

 noticed on a reference to the section of the Manor Old Vein, Veins 

 of this description are also found in the direction of the metalliferous 

 or east and west veins, having an underlie north or south. But 

 whether their direction be cast and west, .or north and south, and 

 whatever their underlie, they are frequently the cause of much 

 expense and vexation to the miner. When the underlie of this 

 species of vein is in the same direction as that of the metalliferous 

 vein, but quicker, so as to overtake it in depth, the latter is ge- 

 nerally divided by the former, and, as it were, removed from its 

 regular course. The load of the metalliferous vein is also some?- 

 times altered in respect to its value, above or below its section, 

 and the space between a and ^, PI. 6. fig. 2. as it regards the load, is 

 as it were lost. This kind of vein, from its direction, has obtained 

 the name of Slide, and the phrase is, * the load is cut out by a 

 slide \ its flucan or gossan, generally traverses that of the north and 

 south, as well as the east and west veins. 



