CONTENTS. 



Page. 



LeTTF.K OKTItAXSMITTAI V 



PliF.KAli: XIII 



BiiiEr (iiTUN-i-: oi' hksilts xv 



CHArTi:i; I. Statistics ami bistory 1 



II. Notes oil foifign occurrences of quicksilver 14 



III. The sedimentary rocks 5(5 



IV. The massive rocks 140 



V. Struc'.ural ami historical geology of the quicksilver belt 17G 



(Appendix to Chapter V, remarks ou the genus Amelia, by Dr. C. A. White) 22G 



VI. Descriptive geology of the Clear Lake region. 233 



VII. Descriptive geology of Sulphur Bank 251 



VIII. Descriptive geology of the Knosville district ; 271 



IX. Descriptive geology of the New Idria district 291 



X. Descriptive geology of the New Almaden district 310 



XI. Descriptive geology of the Steamboat Springs district 331 



XII. Descriptive geology of the Oathill, Great Western, and Groat Eastern districts 354 



XIII. Other deposits of the Pacific .slope 365 



XIV. Discussion of the ore deposits 387 



XV. On the solution and precipitation of cinnabar and other ores 4l9 



XVI. The origin of tlie ore 438 



XVII. Summary of results 4r,l 



I.NDE.K 477 



vn 



