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Encyclopædia britannica - or, A dictionary of arts, sciences, and miscellaneous literature - constructed on a plan, by which the different sciences and arts are digested into the form of distinct (14764597222)

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Encyclopædia britannica - or, A dictionary of arts, sciences, and miscellaneous literature - constructed on a plan, by which the different sciences and arts are digested into the form of distinct (14764597222)

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Identifier: encbritannica05macf (find matches)
Title: Encyclopædia britannica : or, A dictionary of arts, sciences, and miscellaneous literature : constructed on a plan, by which the different sciences and arts are digested into the form of distinct treatises or systems ..
Year: 1797 (1790s)
Authors: MacFarquhar, Colin, ca. 1745-1793 Gleig, George, 1753-1840
Subjects: Encyclopedias and dictionaries
Publisher: Edinburgh : Printed for A. Bell and C. MacFarquhar
Contributing Library: University of California Libraries
Digitizing Sponsor: Internet Archive



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Text Appearing After Image:
,/^. a < r-:::^! 3 a / r^-U. f p 2 J J 2 M 16. 110 fl \ T .1 \\ X ^ 9 .! ■ I //•,//.W,i.//„/^,)m//,/.r/r.tr: • •plateCLX.fig. I. DIAL adjuftcd ftate : to perform vvhicli, you try the levels ofthe horizontal pktes ^a, by firli turning the ferewsBHBB ti!l llie bubbks of air on the glafs tubes of thefpirit-levels (levels are at right angles to each other)which are central or in tlie middle, and remain fowhen you turn the upper plate A half round itscentre ; bnt if they fhonld not keep fn, there arc fniallfcrcws at the end of eacii level, which admit of beingturned one way or the other as may be requifite tillthey are fo. The plates y^.i being thus made horizon-tal, fct the latitude arch or meridian (. Iteadih betweenthe two-grooved fides that hold it (one of which isfcenat D), by the fcrew behind. On this tide D is dividedthe nonius or vernier, coirefponding with the divilionson the latitude arch C, and which may be fiibdividcdinto 5 minutes of a degree, and even Itfs if req

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1797
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University of California
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1797 encyclopaedia britannica
1797 encyclopaedia britannica