 I), 3^ inches in diameter and one-quarter inch thick, having a 3-inch stem, which is cemented in a drill hole in solid rock in the wall of some public building, a bridge abutment, or other substantial masonry structure. The second form (F, PI.  Kentucky Geological Survey - Page 216by Kentucky. State Geologist - 1914Full view - About this book
 | New York (State). State Engineer and Surveyor - Canals - 1914 - 472 pages
...marks are of two forms. The first form is a circular bronze or aluminum tablet (C and E, PL I), 3 '/!; inches in diameter and one-fourth inch thick, having...in solid rock, in the wall of some public building, in a bridge abutment, or in other substantial masonry structure. The second form (F, PL I), employed... | |
 | Geology - 1918 - 226 pages
...The first form is a circular bronze or aluminum tablet (G and E, PL I), 3J inches in diameter and \ inch thick, having a 3-inch stem, which is cemented...other substantial masonry structure. The second form (F, PL I), used where masonry or rock is not available, consists of a hollow wrought-iron post 3J inches... | |
 | Engineers' Society of Pennsylvania - Engineering - 1915 - 538 pages
...a circular bronze on aluminum tablet, 3% inches in diameter and 1-4 inch thick, having a three inch stem which is cemented in a drill hole in solid rock,...other substantial masonry structure. The second form of bench mark is used where masonry or rock is not available, and it consists of a hollow iron post,... | |
 | Nelson Horatio Darton - Geology - 1910 - 574 pages
...appropriately lettered, having a 3-inch stem cemented in a drill hole, generally in the vertical wall of a public building, a bridge abutment, or other substantial masonry structure. The second form, employed where masonry or rock is not accessible, consists of a hollow wroughtiron post 3£ inches... | |
 | Samuel Stinson Gannett, David Henry Baldwin - Altitudes - 1910 - 490 pages
...appropriately lettered, having a 3-inch stem cemented into a drill hole, generally in the vertical wall of a public building, a bridge abutment, or other substantial masonry structure. The second form, employed where masonry or rock is not accessible, consists of a hollow wrought-iron post 3.5 inches... | |
 | Geological Survey (U.S.) - Geology - 1910 - 82 pages
...appropriately lettered, having a 3-inch stem cemented in a drill hole, generally in the vertical wall of a public building, a bridge abutment, or other substantial masonry structure. The second form, employed where masonry or rock is not accessible, consists of a hollow wrought-iron post 3$ inches... | |
 | Geological Survey (U.S.) - Geology - 1911 - 50 pages
...marks are of two forms. The first form is a circular bronze or aluminum tablet (C and E, PI. I), 3£ inches in diameter and one-fourth inch thick, having...other substantial masonry structure. The second form ( F, PI. I) , used where masonry or rock is not available, consists of a hollow wrought-iron post 3£... | |
 | Alfred Hulse Brooks - Coal - 1911 - 728 pages
...form is a circular bronze or aluminum tablet (C and E, PI. I), 3^ inches in diameter and one-quarter inch thick, having a 3-inch stem, which is cemented...other substantial masonry structure. The second form (F, PI. I), used where masonry or rock is not available, consists of a hollow wrought-iron post 3£... | |
 | Geological Survey (U.S.) - Geology - 1911 - 64 pages
...form is a circular bronze or aluminum tablet (C and E, Pl. I), 3| inches in diameter and one-quarter inch thick, having a 3-inch stem, which is cemented...other substantial masonry structure. The second form (F, Pl. I) , used where masonry or rock is not available, consists of a hollow wrought-iron post 3|... | |
 | Geological Survey (U.S.) - Geology - 1911 - 64 pages
...form is a circular bronze or aluminum tablet (C and E, PL I), 3£ inches in diameter and one-quarter inch thick, having a 3-inch stem, which is cemented...building, a bridge abutment, or other substantial masonry 5 structure. The second form (F, PI. I), used where masonry or rock is not available, consists of a... | |
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