 | Robert Gibson - 1806 - 486 σελίδες
...protractions, if the end of the last station falls exactly in the point you began at, the fieldwork and protraction are truly taken and performed, if...must have been committed in one of them : in such case make a second protraction : if this agrees with the former, and neither meet nor close, the fault... | |
 | Abel Flint - 1808 - 190 σελίδες
...Field as before taught: Proceed in the same manner to draw parallel Lines and layoff the several Sdes till the whole is protracted. In protracting a Field,...to be presumed the fault is in the Field work ; a re-survey must then be taken. EXAMPLE I. FIELD BOOK. See PLATE H. Fig. 53. * A Compass may be so constructed... | |
 | Robert Gibson - 1808 - 482 σελίδες
...protractions, if the end of the last station falls exactly in the point you began at, the fieldwork and protraction are truly taken, and performed ; if...must have been committed in one of them ; in such case make a second protraction ; if this agrees with the former, and neither meet or close, the fault... | |
 | Robert Gibson - 1811 - 580 σελίδες
...protractions, if the end of the last station falls exactly in the point you began at, the fieldwork and protraction are truly taken, and performed ; if...must have been committed in one of them : in such case make a second protraction ; if this agrees with the former, and neither meet nor close, the fault... | |
 | Robert Gibson - 1814 - 558 σελίδες
...protractions, if the end of the last station falls exactly in the point you began at, the fieldwork and protraction are truly taken, and performed ; if...must have been committed in one of them : in such case make a second protraction; if this agrees with the former, and neither meet nor close, the fault... | |
 | Abel Flint - 1818 - 184 σελίδες
...East . r West ; and from the upper or lower part of the Line, according as it is North or South. hi all protractions, if the end of the last distance...cases make a second protraction ; if this agrees with ihe former, it is to be presumed the fault is in the Field work ; a re-survey must then be taken. EXAMPLE... | |
 | Robert Gibson - 1818 - 502 σελίδες
...protractions, if the end of the last station falls exactly in the point you began at, the field-work and protraction are truly taken, and performed ; if...must have been committed in one of them ; in such case make a second protraction : if this agrees with the former, and neither meet or close, the fault... | |
 | Robert Gibson - 1821 - 594 σελίδες
...falls exactly in the point you began at, the fieldAvork and protraction are truly taken.and peiformed ; if not, an error must have been committed in one of them.: in such case make a second protraction; if this agrees with the former, and neither meet nor close, the fault... | |
 | Abel Flint - 1825 - 252 σελίδες
...the Course to the right or left of the Meridian Line, according as it is East or West, and from ethe upper or lower part of the Line, according as it is...not, an error must have been committed in one of them 1 in such cases, make a second protraction ; if this agrees with the former, it is to be presumed the... | |
 | Abel Flint - 1830 - 322 σελίδες
...exactly on the point from which you began, the course also being right, the field work and protractions are truly taken and performed ; if not, an error must...to be presumed the fault is in the field work ; a re-survey must then be taken. * A compass may be so constructed with two indexes, one moveable and... | |
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Field work and protraction are truly taken and performed ; if not, an error must have been committed in one of them : In such cases make a second protraction ; if this agrees with the former, it is to be presumed the fault is in the Field work ; a re-survey... 
