Brand Whitlock


Robert Underwood Johnson


image preview


Robert Underwood Johnson #2.demonstrated that the storage of water for a period of time has the effect of purifying it. The large storage reservoirs used in London were constructed for the purpose of conserving water when it was abundant against the time of relative scarcity, and Doctor Houston discovered that this storage reduces the number of bacteria of all sorts, devitalizes the microbes of water borne diseases, reduces the amount of suspended matter and has a tendency to lengthen the life of the filters. The storage of raw water antecedent to filtration enables him now to supply a potable water of a purity which Satisfies the most exacting scientific tests. . The water board, therefore, has adopted what is known as the Staine's Reservoirs Extension Schemes for the provision of additional reservoirs in the valley of the Thames. In this chain of reservoirs the raw water will be taken in and decanted from one reservoir to the other, and finally be filtered. Calculations already made show that the water so impounded will last until 1941, with an estimated population of twelve millions of people. She advantages over the Wales scheme - which is such a one as you are opposing in the Yosemite - are overwhelming. The construction of conduits of maximum capacity for maximum future supply, of course, would be tremendously expensive, whereas reservoirs and filters can be constructed by units,- we do that here, and as need arises now units may be added.If you care to know more about this whole subject, I am sure that If you were to write to the Metropolitan Water Board at the central office, Savoy Court, Strand, W. C., London, they could toll you all about it. She clerk there is Mr. A. B. Pilling, F. C. I. S., and the bacteriological expert is Doctor A. C. Houston, M. B. D. Sc., He may be addressed at 20 Nottingham Place, West,Yours very sincerely,(Signed) Brand Whitlock.06331


Toledo [Ohio]

Date Original

1912 Dec 19


Original letter dimensions: 26.5 x 20.5 cm.

Resource Identifier


File Identifier

Reel 20, Image 1491

Copyright Statement

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.

Owning Institution

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.

Page Number

Page 2


John Muir, correspondence, letters, author, writing, naturalist, California, correspondent, mail, message, post, exchange of letters, missive, notes, epistle