A compendium of astronomy; containing the elements of the science, familiarly explained and illustrated, with the latest discoveries. Adapted to the use of schools and academies, and of the general reader (1850)
Olmsted, Denison, 1791-1859 · New York, R. B. Collins · leaf 33
uch a distance from it, as not to distinguishany interval between the ring and the wall; then theseveral figures under which the ring is seen, will appearto be inscribed on the wall, and we shall see the ring asa circle when perpendicular to a straight line joiningthe center of the ring and the… … Here various circles are represented as projected on themeridian, which is supposed to be situated directly be-fore the eye, at some distance from it) .The horizon HObeing perpendicular to the meridian is seen edgewise, andconsequently is projected into a straight line. The sameis the case with the…
Astronomy
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