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Scientific American, Vol. 77, No. 25 (1897) (1897)
leaf 8
referred to, the the actual size of picture required. Next provide a inch line pipes, ‘‘ the weakest steel pipe of each class piece of plate glass of suitable size, and after careful tubing is continually being subjected to a variety of was stronger than the strongest wrought iron pipe of tests to… … light receive the most undertaken this year to de- 8.-HYDRAULIC PIPE TESTING MACHINE. moisture, and consequent- termine the relative merits © 1897 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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