Transcription:
UNITED. RAILROADS OF SAN FRANCISCO OFFICE OF CHIEF ELECTRICIAN 1140 FILLMORE STRUT IN REPLY REPER TO NOTIFICATION 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 Discovers 06327