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Elements of surveying and levelling; with descriptions of the instruments and the necessary tables (1870)
Davies, Charles, 1798-1876 · New York and Chicago, A. S. Barnes & Company · leaf 456
S:uia t-l.Mltl isli weirs \ (^ >aiid always covered i >^i&tn.lsoTnetirm.s Lai Dire ctiuii olthe Tiirrent Jiocks sometiiues L SaVtt^aii^e-mai Lfflock-Surveying
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