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Page 107
Concrete is rapidly coming to its own as a building material , and with the ability now to furnish enameled concrete brick at a low cost through the medium of this automatic machine , this industry , it is predicted , will open a field ...
Concrete is rapidly coming to its own as a building material , and with the ability now to furnish enameled concrete brick at a low cost through the medium of this automatic machine , this industry , it is predicted , will open a field ...
Page 550
APPARATUS FOR LAYING ON THE CONCRETE , VIEW IN FACTORY SHOWING STEEL BELT IN USE . It. ness of about six inches . This concrete sleeve extends above the ground sufficiently to cover the upper terminals of the rods , thus forming a kind ...
APPARATUS FOR LAYING ON THE CONCRETE , VIEW IN FACTORY SHOWING STEEL BELT IN USE . It. ness of about six inches . This concrete sleeve extends above the ground sufficiently to cover the upper terminals of the rods , thus forming a kind ...
Page 676
CHIMNEY OF CONCRETE BLOCKS . TEREDO - PROOF PILE . Eucalyptus piles in salt water. AFFECTIONATE BABY SEAL THIS baby seal was taken by fishermen in the Pacific Ocean near Long Beach , California , and was released shortly afterwards near ...
CHIMNEY OF CONCRETE BLOCKS . TEREDO - PROOF PILE . Eucalyptus piles in salt water. AFFECTIONATE BABY SEAL THIS baby seal was taken by fishermen in the Pacific Ocean near Long Beach , California , and was released shortly afterwards near ...
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Contents
MAGAZINE | 586 |
Cover Design LEJAREN HILLER | 591 |
Men of SciencePORTRAITS | 605 |
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