 ... the point Aries, and upon every twelve degrees preceding and following that point, till there be ten or eleven marks ; bring that mark which is the nearest to Pisces to the eastern edge of the horizon, and set the index to 12 ; turn the globe westward...  A Practical Treatise on the Use of the Globes, etc - Page 33by William Thackwray - 1810 - 118 pagesFull view - About this book
 | Thomas Keith - Astronomy - 1811 - 388 pages
...the horizon, and set the index to 1 ; turn the globe westward till the other marks successively come to the horizon, and observe the hours passed over by the index ; the intervals of time between the marks coming to the horizon will shew the diurnal difference oi... | |
 | John Lathrop - Astronomy - 1812 - 218 pages
...horizon, and set the index to twelve ; turn the globe westward till the other marks successively come to the horizon, and observe the hours passed over by the index ; the intervals of time between the marks coming to the horizon will shew the diurnal difference of... | |
 | Thomas Keith - Astronomy - 1819 - 380 pages
...the horizon, and set the index to 12; turn the globe westward till the other marks successively come to the horizon, and observe the hours passed over by the index ; the intervals of time between the marks coming to the horizon will show the diurnal difference of... | |
 | Thomas Keith - 1821 - 408 pages
...over half an hour, and depress the pole till the place comes a second time into the horizon, the last elevation of the pole will shew the sun's declination when the day is an hour shorter than the given day. OR, Elevate the pole to the latitude of the place, find tlie sun's place... | |
 | James M'Intire - Globes - 1823 - 232 pages
...mark with a pencil that point of the meridian passing through Libra, which is then cut by the horizon; continue the motion of the globe eastward till the index has passed over a nother quarter of an hour, and make another mark; proceed thus, till the meridian passing through... | |
 | Thomas Keith - Globes - 1826 - 360 pages
...index of the hour circle to twelve ; turn the globe eastward on its axis till the given place comes to the horizon, and observe the hours passed over...the globe eastward till the index has passed over an other half hour, and raise or depress the pole till the place comes again into the horizon, the... | |
 | James M'Intire - Globes - 1826 - 234 pages
...mark with a pencil that point of the meridian passing through Libra, which is then cut by the horizon; continue the motion of the globe eastward till the index has passed over another quarter of an hour, and make another mark; proceed thus, till the meridian passing through Libra coincides... | |
 | James Ryan - Astronomy - 1827 - 408 pages
...meridian passing through Libra, which is cut by the horizon, will show the end" of the first climate ; continue the motion of the globe eastward till the index has passed over another quarter of an hour, and the point of the same meridian, which is cut by the hprizon, will show the... | |
 | Joseph Guy - Astronomy - 1832 - 412 pages
...the horizon, and set the index to 12 ; turn the globe westward till the other marks successively come to the horizon, and observe the hours passed over by the index ; the intervals of time between the marks coming to the horizon will show the diurnal difference of... | |
 | Elijah Hinsdale Burritt - Astronomy - 1838 - 350 pages
...the horizon, and set the index to 12; turn the globe westward till the other marks successively come to the horizon, and observe the hours passed over by the index; the intervals of time between the marks coming to the horizon, will show the diurnal differenceof time... | |
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