S. L. Foster
W[illiam] E. Colby
UNITED. RAILROADS OF SAN FRANCISCOOFFICE OF CHIEF ELECTRICIAN1140 FILLMORE STRUTIN REPLY REPER TONOTIFICATION OF WATER[illegible]San Francisco,Sept. 25th, 1912.W. E. Colby,Secretary, Sierra club,302 Mills Building, City.Dear Sir:- It may seem rather "far fetched" and visionary to advance the argument in the Ketch Hetchy matter that the water of the Tuolumne o any on is too pure and is so free ofcalcium salts from having run over only granite, that its useis liable to lead to tuberculosis and dental Caries but I amgoing to give you an apparent justification for the argument andleave it to your Judgment aided by the advice of some of thegood medical, as well as geological members of the club as toits utility at this time.In the "Literary Digest" of July 6, 1912 page 217 under the head of "Will Pure Water Harm the Teeth?" appeared an interesting article abstracting comments in European medical journals on the claims of a Dr. Roese - a German physician who Claims that absence of calcium salts in drinking water or the use of boiled water predisposes and leads to decay of the teeth. "Obviously, for the same reason, the water of lime stone regions are preferable to those where the soil is granitic." x x x "Decalcification of water is one of the conditions most favorable to the development of tuberculosis" , are extracts from this Digest article.In the San Francisco "Examiner" of July 21st, 1912 in the"Magazine" part is a full paged article entitled "Science Discovers06327
1912 Sep 25
Original letter dimensions: 28 x 21.5 cm.
Reel 20, Image 1331
Copyright status unknown
Some letters written to John Muir may be protected by the U.S. Copyright Law (Title 17, U.S.C.). Transmission or reproduction of materials protected by copyright beyond that allowed by fair use requires the written permission of the copyright owners. Responsibility for any use rests exclusively with the user.
University of the Pacific Library Holt-Atherton Special Collections. Please contact this institution directly to obtain copies of the images or permission to publish or use them beyond educational purposes.
John Muir, correspondence, letters, author, writing, naturalist, California, correspondent, mail, message, post, exchange of letters, missive, notes, epistle