 ... being about three feet above the surface, and the posts about four feet apart: then lay a plank, or piece of timber three or four inches in width, and smooth on the upper side, upon the posts, and let it be pinned or nailed, to hold it firmly. 2....  Elements of Surveying and Leveling - Page 141by Charles Davies - 1883 - 564 pagesFull view - About this book
 | INSTRUCTIONS TO THE SURVEYORS GENERAL OF PUBLIC LANDS OF THE UNITED STATES. - 1871 - 106 pages
...and west; the uppermost ends, after the posts are driven, being about three feet above the surface, and the posts about four feet apart; then lay a plank,...three or four inches in width, and smooth on the upper sideT upon the posts, and let it be pinned or nailed, to hold it firmly. 2. Prepare a piece of board... | |
 | J. H. Hawes - Public lands - 1873 - 234 pages
...and west; the uppermost ends, after the posts are driven, being about three feet above the surface, and the posts about four feet apart; then lay a plank,...and let it be pinned or nailed, to hold it firmly. 2d. Prepare a piece of board four or five inches square, and smooth on the under side. Let one of the... | |
 | United States. General Land Office - Public lands - 1881 - 138 pages
...and west; the uppermost ends, after the posts are driven, being about three feet above the surface, and the posts about four feet apart; then lay a plank,...of timber three or four inches in width, and smooth ou the upper side, upon the posts, and let it be pinned or nailed, to hold it firmly. 2. Prepare a... | |
 | United States. Bureau of Land Management - Surveying - 1890 - 192 pages
...and west; the uppermost ends after the posts are driven, being about three feet above the surface, and the posts about four feet apart ; then lay a plank,...piece of board four or five inches square, and smooth on the under side. Let one of the compass sights be placed at right angles to the upper surface of... | |
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