BRIEF OL TLIXE OF RESULTS. xix 



from gulphur Bauk and Steaiiibiiat Springs either at orciuary temperatures or above the boiling-point. 

 Metallic gold, iron pyrite, copper pyrlte, and otber miL-.'rals found with einnabar are also soluble in 

 the same solutions. 



A discussion of the origin of the ore concludes the investigation. It is showu that the quicksilver 

 is probably derived from granitic rocks by the action of heated sulphur waters which rise through the 

 granite from the foci of volcanic activity below that rock. 



For the convenience of those wlio consult the report the separate chapters are made as far as pos- 

 sible indepeudent of one another, a plan involving a certain amount of repetition. Further to facili- 

 tate the use of the volume, the last chapter presents a summary of those which precede it. 



