 The dill'erence may be due, perhaps to some cause which I did not consider, such as a slight leaning of the rod forward or backward, inexactness in placing the face of the rod precisely at the station, imperfect graduation of the rod, imperfect cleanliness...  Stadia Surveying: The Theory of Stadia Measurements - Page 50de Arthur Winslow - 1884 - 148 pagesAffichage du livre entier - À propos de ce livre
 | Charles Albert Ashburner - 1883 - 482 pages
...of the rod forward or backward, inexactness in placing the face of the rod precisely at the station, imperfect graduation of the rod, imperfect cleanliness...imperfection in the shape of the lenses or in their adjustments to one another, inferior lighting of the magnified image as compared with the un magnified... | |
 | 1884 - 616 pages
...0° 2' 0.0' 8. 97-N N. 73° 35' E. N. 73° 34' E. 0° 1' 3.0'S. ral) of the same kind, of .00069, or This is within half the exactness I claimed as possible...imperfection in the shape of the lenses, or in their adjustments to one another, waviness from the varying refraction of the air with the heat from the... | |
 | Arthur Winslow - 1889 - 188 pages
...error for any one of the number of trials (that is, in general) of the same kind, of .00069, or fiWThis is within half the exactness I claimed as possible...imperfection in the shape of the lenses, or in their adjustments to one another, waviness from the heat from the sun and urate focussing, inexa center hair... | |
 | Thomas J. Foster - 1891 - 444 pages
...of the rod forward or backward, inexactuess in placing the face of the rod precisely at the station, Imperfect graduation of the rod, Imperfect cleanliness...imperfection in the shape of the lenses or in their ad1ustments to one another, inferior lighting of the magnified Image as compared willthe unmagnlfled... | |
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