Inventors at work, with chapters on discovery (1906)
Iles, George, 1852-1942 · New York, Doubleday, Page & company · leaf 64
BRIDGES 29 … u u w PQ W a u w J> M-H <! o i-J 9 1—1 OO CO f£J W Q K - CO w to _ O g pj c (J rt w o <J Q 8 & o PQ o P^ MW W u oH 30 FORM-BRIDGES waters in a single day may rise forty feet, bearing along trees andtimbers with destructive violence. As a rule the difficulty is met byemploying…
Inventions · Inventors
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