•o^£> RHBHI HHH1 Jfrj 'J m ^—ctojckj ^ *0° [Entered at the Post Office of New York. N Y., as Second Class Matter. Copvrtirht. lf£«. by Mmin & Co.; A WEEKLY JOURNAL OF PRACTICAL INFORMATION, ART, SCIENCE, MECHANICS, CHEMISTRY, AND MANUFACTURES. Vol. LXXIX.-No. 25. NEW YORK, DECEMBER IV, 1898. f$3.00… … 1.—Wetting Down Surface Before Building a New Block. 2.—Crest of Dam. Showing Method of Dovetailing the Blocks. 4.—Upstream Face of Dam During Construction. 3 A 4-foot Gate and Pipe-Line Below Dam. Br—Dam Completed to the 146-foot Level. CONSTEUCTION OF THE CEYSTAL SPEINGS DAM, CALIFOENIA—[See page…
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