Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 748
of me-chanical problems of greatmagnitude, almost 15,000,000feet of airplane lumber wasproduced, a quantity sufficientfor 28,125 planes. The lum-ber of the wing-beam mustnot only be clear, from acommercial standpoint, butmust also be straight-grained,of fine texture, with less thansix grains to the… … SPRUCE LOGS GOING TO THE MILL. can convert 350,000 feet of lumber a day into thefinished air-craft stock. In the Spruce Division 1066 CUTTING AEROPLANE SPRUCE IN CANADA [Oct., are now between ten and twelve thousand officersand men of the Army attached to Vancouver Bar-racks. Many of these men have…
Children's literature
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