 | George Adams - 1813 - 576 pages
...drawing the diagonals exactly, but also because there is no check upon the errors in that scale ; here the uniform manner in which the strokes of one scale separate from those of the other, is some evidence of the truth of both; but Mr. Bird's method of assuming a much longer line than what... | |
 | John Fry Heather - 1849 - 202 pages
...minutise, a diagonal, or vernier scale may advantageously be laid down upon the paper upon which the plot is to be made. A vernier scale is preferable to a...strokes of one scale separate from those of the other is some evidence of the truth of both *. * In Mr. Bird's celebrated scale, by means of which he succeeded... | |
 | Thomas Baker - 1850 - 244 pages
...work on the plan. Therefore, for plotting an extensive survey, and accurately filling in the minutia;, a diagonal, or vernier scale may be advantageously...the other, is strong evidence of the truth of both. * If the vernier scale were placed to the left of the zero point, a distance less than one primary... | |
 | Sir Henry Edward Landor Thuillier - 1851 - 826 pages
...diagonal, or vernier scale may advantageously be laid down upon the paper upon which the plot is to he made. A vernier scale is preferable to a diagonal...strokes of one scale separate from those of the other is some evidence of the truth of both. ON THE PROTRACTING SCALES. THE nature of these scales will be understood... | |
 | John Fry Heather - 1851 - 208 pages
...minutiae, a diagonal, or vernier scale may advantageously be laid down upon the paper upon which the plot is to be made. A vernier scale is preferable to a...extremely difficult to draw the diagonals with accuracy, aud we have no check upon its errors ; while in the former the uniform manner in which the strokes... | |
 | Lucius D. Gould - 1853 - 234 pages
...minutse, a diagonal, or vernier scale may advantageously be laid down upon the paper upon which the plot is to be made. A vernier scale is preferable to a...strokes of one scale separate from those of the other is some evidence of the truth of both.* ON THE PROTEAcnKft SCALES. — The nature of these scales will... | |
 | Lucius D. Gould - 1857 - 464 pages
...minuta, a diagonal, or vernier scale may advantageously be laid down upon the paper upon which the plot is to be made. A vernier scale is preferable to a...strokes of one scale separate from those of the other is some evidence of the truth of both.* ON TILE PROTRAGIżING ScAiżs.—The nature of these scales wifi... | |
 | John Fry Heather - 1859 - 198 pages
...minutiae, a diagonal, or vernier scale may advantageously be laid down upon the paper upon which the plot is to be made. A vernier scale is preferable to a...strokes of one scale separate from those of the other is some evidence of the truth of both*. * In Mr. Bird's celebrated scale, by means of which he succeeded... | |
 | Thomas Baker (Civil engineer) - 1865 - 278 pages
...all the distances of the survey have been taken from the scale so laid down, which will always be io the same state of expansion or contraction as the...the other, is strong evidence of the truth of both. * If the vernier scale were placed to the left of the zero point, a distance less than one primary... | |
 | John Fry Heather - 1866 - 228 pages
...minutise, a diagonal, or vernier scale may advantageously be laid down upon the paper upon which the plot is to be made. A vernier scale is preferable to a...manner in which the strokes of one scale separate from tho&e of the other is some evidence of the truth of both*. * In Mr. Bird's celebrated scale, by means... | |
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For plotting, then, an extensive survey, and accurately filling in the minutiae, a diagonal, or vernier scale may advantageously be laid down upon the paper upon which the plot is to be made. A vernier scale is preferable to a diagonal scale, because... 