Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 464
es or gases in old wells. Of course, a man undertaking suchwork must not only be a good diver,but he must also understand his trade— engineering, masonry, carpentry,well-sinking, or bridge-building. Inopen-sea work he must necessarily bea good seaman. The sponge, pearl,coral, and amber fisheries,… … THE FIRST HELMET MADE FOR DIVING PURPOSES, 1819. THISFIRST FORM OF HELMET WAS RIVETED TO A DIVING-DRESSTHAT COVERED ONLY THE UPPER PART OF THE BODY. dress of a fully equipped diver weighs, in roundnumbers, one hundred and seventy pounds. Taking off his every-day garb, the diver pullson his thick…
Children's literature
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