 CASE I. Where the base is between 60 and 120 yards. Suppose the distance from A to O (Fig. 3) to be required. At " Take the range," No. 2 plants a picket with square leather head and strut at A, the flat side of head turned to the left and the strut to...  Notes on Military Surveying and Reconnaissance - Page 118by William Paterson (Lieut.-Col.) - 1882 - 146 pagesFull view - About this book
 | United States. Army. Ordnance Department - 1879 - 832 pages
...(Fig. 3) to be required. At " Take the range," Xo. 2 plants a picket with square leather head and strut at A, the flat side of head turned to the left and the strut to the rear. Xo. 1 notices what portion of the object he can see from A, goes off' about 100 yards to the left,*... | |
 | United States. Congress. House - United States - 1880 - 842 pages
...(Fig. 3) to be required. At " Take the range," No. 2 plants a picket with square leather head and strut at A, the flat side of head turned to the left and...see from A, goes off about 100 yards to the left,* at about right angles to A O. lie opens the instrument, pushes the arm II I against the stop К (by... | |
 | William Hamilton Richards - Military topography - 1883 - 256 pages
...distance of 0 from A (Fig. 56) to be required. Plant the picket with square leather head and strut, at A, the flat side of head turned to the left, and the strut or support to the rear. Now pace about 100 yards at about right angles to AO. Open the instrument,... | |
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