 | George Adams - 1813 - 648 σελίδες
...furthest from the sextant. If the nearest limbs be now precisely in contact, as they were before, then the axis of the telescope is in its right situation....if the limbs of the two objects appear to separate at the wire that is furthest from the plane of the instrument, it shews that the object end of the... | |
 | Nathaniel Bowditch - 1826 - 732 σελίδες
...sextant, and fix tue. index, then, by altering a little the position of the instrument, make the ¡mage appear on the other wire ; if the contact still remains...its right situation; but, if the limbs of the two object's appear to separate or lap over, at the wire which is farthest from the plane of the sextant,... | |
 | Nathaniel Bowditch - 1826 - 764 σελίδες
...the sextant, and fix t indexa then, by altering n little the position of the instrument, make t image appear on the other wire; if the contact still remains perfect, the ;n •of the telescope is in its right situation; but, if the limbs of the two objet appear to separate... | |
 | Frederick Walter Simms - 1834 - 134 σελίδες
...nearest the plane of the sextant, fixing the index, and altering the position of the instrument to make the objects appear on the other wire ; if the...still remains perfect, the axis of the telescope is in proper adjustment ; if not, it must be altered by moving the two screws which fasten, to the up-and-down... | |
 | Basil Jackson - 1841 - 426 σελίδες
[ Λυπούμαστε, το περιεχόμενο αυτής της σελίδας είναι περιορισμένο ] | |
 | Sir J. Butler Williams - 1846 - 368 σελίδες
...the sextant (see diagram page 267), fixing the index, and altering the position of the instrument to make the objects appear on the other wire ; if the...still remains perfect, the axis of the telescope is in proper adjustment; if not, it must be altered by moving the two screws which fasten, to the up-and-down... | |
 | Nathaniel Bowditch - 1846 - 854 σελίδες
...plane of the sextant, and fix the index; then, by altering a little the position of the instruinrnt, make the objects appear on the other wire ; if the contact still remains ]>erli;ct, the axis of tlie telescope is in its right situation ; but, if the limbs of the two objects... | |
 | Basil Jackson - 1847 - 410 σελίδες
...nearest the plane of the sextant, fixing the index and altering the position of the instrument, to make the objects appear on the other wire : if the contact still remains perfect, the telescope is in proper adjustment ; if not, it must be altered by moving the two screws which fasten... | |
 | Benjamin Pike - 1848 - 356 σελίδες
...nearest the plane of the sextant, fixing the index, and altering the position of the instrument to make the objects appear on the other wire ; if the...still remains perfect, the axis of the telescope is in proper adjustment ; if not, it must be altered by moving the two screws which fasten, to the up-and-down... | |
 | Benjamin Pike (Jr.) - 1848 - 482 σελίδες
...nearest the plane of the sextant, fixing the index, and altering the position of the instrument to make the objects appear on the other wire ; if the...still remains perfect, the axis of the telescope is in proper adjustment ; if not, it must be altered by moving the two screws which fasten, to the up-and-down... | |
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... to make the objects appear on the other wire ; if the contact still remains perfect, the axis of the telescope is in proper adjustment ; if not, it must be altered by moving the two screws which fasten, to the up-and-down piece, the collar into which... 
