The Quarterly Journal of Science and the Arts, Volume 5John Murray, 1818 - Science |
From inside the book
Results 1-5 of 19
Page 202
... distributed among the proper per- sons employed on the above occasion . the screw which elevates or depresses one of the Ys [ 202 ] Instructions for the Adjustments and Use of the Instru- ments intended for the Northern Expeditions.
... distributed among the proper per- sons employed on the above occasion . the screw which elevates or depresses one of the Ys [ 202 ] Instructions for the Adjustments and Use of the Instru- ments intended for the Northern Expeditions.
Page 203
... Screw the triangular support of the clock very firmly to- gether , and having taken off the head , fix the clock - case to the support by the screws for that purpose . Bring the bubble of the level which is near the agates , to the ...
... Screw the triangular support of the clock very firmly to- gether , and having taken off the head , fix the clock - case to the support by the screws for that purpose . Bring the bubble of the level which is near the agates , to the ...
Page 204
... screw which attaches the clock case to the triangular support , and move the clock case a very little to the right or left , till the beats are perfectly equalized . When this is effected , let the screws which attach the clock case to ...
... screw which attaches the clock case to the triangular support , and move the clock case a very little to the right or left , till the beats are perfectly equalized . When this is effected , let the screws which attach the clock case to ...
Page 207
... screws which support the instrument , bring the bubble to the middle of the level . Take the telescope out of the Ys , and turning it half round horizontally , replace it carefully in them , when if the bubble is not in the middle ...
... screws which support the instrument , bring the bubble to the middle of the level . Take the telescope out of the Ys , and turning it half round horizontally , replace it carefully in them , when if the bubble is not in the middle ...
Page 208
... screws which elevate or depress one of the Ys , and the other half by the screws which support the instrument . Repeat this operation , if necessary , till the bubble remains in the middle of the level in both posi- tions , when the ...
... screws which elevate or depress one of the Ys , and the other half by the screws which support the instrument . Repeat this operation , if necessary , till the bubble remains in the middle of the level in both posi- tions , when the ...
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Common terms and phrases
altitude ammonia angle appears arts ascertained atmosphere Author axis azimuth BAMBUSA blue bodies bubble carbonate chloride chronometer cinders circle clock coast colours containing crystals Cyperaceae degree direction DISPERIS distance Ditto earth effect exhibited experiments feet flame flax given number glass green Greenland heat Hill and Bundy's horizontal hornblend hydrometer inches instrument iron island kaleidoscope lava length light limb liquid machine magnetic means measure meridian metal muriatic muriatic acid nearly needle nitric acid object observed obtained oxide oxygen paper particles pendulum plates platinum position potash produced proportion quantity quicksilver rays reflected reflectors result river rock Royal salt Saturday Sunday Monday sciences SCIRPUS seen shew shewn solution species specific gravity stone substance sun's supposed surface tabasheer tangent screw telescope temperature thermometer tion tube vegetable vernier vertical vibrations wire Zaire