 | Edward Charles Frome - 1840 - 232 pages
...hollow brass cylinder h, which forms the top of a stand used for observing with a repeating circle ; but it may be made in a variety of ways so as to revolve...level by the eye, these corks are both withdrawn,* and the surface of the water in the bottles being necessarily on the same level, gives a horizontal... | |
 | Edward Charles Frome - 1850 - 292 pages
...revolve on any light portable stand. The tube, when required for use, is filled with water (colored with lake or indigo), till it nearly reaches to the...tolerably level by the eye, these corks are both withdrawn -f-, and the surface of the water in the bottles being necessarily on the same level, gives a horizontal... | |
 | Edward Charles Frome - 1850 - 294 pages
...hollow brass cylinder h, which forms the top of a stand used for observing with a repeating circle ; but it may be made in a variety of ways so as to revolve...tube, when required for use, is filled with water (colored with lake or indigo), till it nearly reaches to the necks of the bottles, which are then corked... | |
 | Thomas Baker - 1850 - 244 pages
...; the projecting short axis g works in a hollow brass cylinder h, which forms the top of a stand : but it may be made in a variety of ways, so as to revolve oil any light portable stand. The tube, when required for use, is filled with water, coloured with... | |
 | John Blenkarn - 1859 - 300 pages
...hollow brass cylinder, h, which forms the top of the stand used for observing with a repeating circle : but it may be made in a variety of ways, so as to...with water (coloured with lake or indigo), till it reaches to the necks of the bottles, which are then corked for the convenience of carriage ; on setting... | |
 | Edward Charles Frome - 1862 - 336 pages
...hollow brass cylinder k, which forms the top of a stand used for observing with a repeating circle ; but it may be made in a variety of ways so as to revolve...(coloured with lake or indigo), till it nearly reaches to * Thc instrument from which the sketch was made was constructed for me by an ironmonger in Chatham... | |
 | Robert Thornton (Engineer.) - 1863 - 144 pages
...; the projecting short axis G works in a hollow brass cylinder H, which forms the top of a stand ; but it may be made in a variety of ways, so as to revolve on any portable stand. The tube, when required for use, is filled with water coloured with lake or indigo,... | |
 | Thomas Baker (Civil engineer) - 1865 - 278 pages
...lead; the projecting short axis g works in a hollow brass cylinder h, which forms the top of a stand : but it may be made in a variety of ways, so as to revolve on any light portable stand. Thq tube when reauired for use, is filled with water, coloured with lake or indigo, till it nearly... | |
 | Edward Charles Frome - 1873 - 446 pages
...hollow brass cylinder h, which forms the top of a stand used for observing with a repeating circle ; but it may be made in a variety of ways so as to revolve...till it nearly reaches to the necks of the bottles. In the level generally in use the bottles are corked for the convenience of carriage, and have to be... | |
 | John Fry Heather - 1891 - 260 pages
...hollow brass cylinder, h, which forms the top of a stand, used for observing with a repeating circle ; but it may be made in a variety of ways, so as to...eye, these corks are both withdrawn, which must be dons D carefully, and when the tube is nearly level, or the water will be ejected with violence ; and... | |
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... but it may be made in a variety of ways, so as to revolve on any light portable stand. The tube, when required for use, is filled with water (coloured with lake or indigo), till it nearly reaches to the necks of the bottles, which are then corked... 