Report of the State Mineralogist . t Gilroy. Thehealth resort established at this property in 1865 is one of the bestknown in California. There are hotel and cottage accommodations for150 guests, and it is open throughout the year. A daily auto stageservice from Gilroy to the springs is maintained throughout the J. McDonald is the proprietor. Bibl.: Rept, XIII, p. 518. Water Supply Paper 338, pp. Andersons Report, pp. 156-158. SANTA CLARA COUNTY. 203 Analysis of Water from Gilroy Hot Springs, Santa Clara County, California. (Analyst and authority, Winslow Anderson, 1888
Report of the State Mineralogist . t Gilroy. Thehealth resort established at this property in 1865 is one of the bestknown in California. There are hotel and cottage accommodations for150 guests, and it is open throughout the year. A daily auto stageservice from Gilroy to the springs is maintained throughout the J. McDonald is the proprietor. Bibl.: Rept, XIII, p. 518. Water Supply Paper 338, pp. Andersons Report, pp. 156-158. SANTA CLARA COUNTY. 203 Analysis of Water from Gilroy Hot Springs, Santa Clara County, California. (Analyst and authority, Winslow Anderson, 1888; constituents are in parts per million.) Temperature Properties of reaction: Primary salinity Secondary salinity _Tertiary salinity __Primary alkalinity _Secondary alkalinityTertiary alkalinity _. 43° C. (HOT.) Constituents Reactingvalues Sodium (Na) Potassium (k) Calcium (Ca) Magnesium (Mg) Iron (Fe) Sulphate (SO*) Chloride (CI) Iodide (I) Carbonate (CO3) Arsenate (AsOO Silica (SiOs) Carbon dioxide (CO2) Hydrogen sulphide (H2S). Grant Spring is situated in Alum Rock Canon, 5 miles above thepark. It is a slightly mineralized spring of small flow, whose waterscontain principally sodium and magnesium carbonates. The water isbottled at the spring and distributed locally for table and medicinaluses by J. W. Shannon, 343 South Eighth street, San Jose, who has itunder lease. J. D. Grant is the owner. Bibl.: Water Supply Paper 338, p. 212. Hillydale Sulphur A small sulphur spring is situated onproperty known as Hillydale, about 4J miles south of the reductionworks of the New Almaden quicksilver mine, or 20 miles by road south-ward from San Jose. The spring is on the western bank of a stream,200 yards from the house on the place, and yields about one-half gallona minute of moderately sulphureted water. The following analysisindicates a primary-saline, secondary-alkaline water whose total min-eral content is small. Water Supply Paper 338, pp 271-272. 204 MINES AND M
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