The British Encyclopedia: Or, Dictionary of Arts and Sciences. Comprising an Accurate and Popular View of the Present Improved State of Human Knowledge, Volume 9Mitchell, Ames, and White, 1818 - Natural history |
From inside the book
Results 1-3 of 38
Page
... circle , called the re- fraction circle , H , moveable by a finger screw at the extremity of the eye - end of the telescope ; which circle is divided into half minutes , one entire revolution of it being equal to 3 ′ 18 ′′ , and by its ...
... circle , called the re- fraction circle , H , moveable by a finger screw at the extremity of the eye - end of the telescope ; which circle is divided into half minutes , one entire revolution of it being equal to 3 ′ 18 ′′ , and by its ...
Page
... circle to 0 ° , turn the hour circle till the bubble comes right ; then turn the de- clination circle to 90 ° ; adjust the bubble by raising or depressing the polar axis ( first by hand , till it be nearly right , af- terwards tighten ...
... circle to 0 ° , turn the hour circle till the bubble comes right ; then turn the de- clination circle to 90 ° ; adjust the bubble by raising or depressing the polar axis ( first by hand , till it be nearly right , af- terwards tighten ...
Page
... circle . 2. As the middle part of the cycloid may be conceived to co- incide with the generating circle , the time in a small arch of that circle will be nearly equal to the time in the cycloid : and hence the reason is evident , why ...
... circle . 2. As the middle part of the cycloid may be conceived to co- incide with the generating circle , the time in a small arch of that circle will be nearly equal to the time in the cycloid : and hence the reason is evident , why ...
Other editions - View all
The British Encyclopedia: Or, Dictionary of Arts and Sciences. Comprising an ... William Nicholson No preview available - 2015 |
Common terms and phrases
absciss action affections ammonia angle animal antimony appear association axis become benevolence body boiling botany called calyx centre circle class and order colour common compound connected consequence convex lens corolla degree dissolved distance distilled drupe Dubl Edin electuary employed equal Essential character excite feelings fixed flowers fluid fossil frequently genus glass happiness heat Hence ideas inches Jussieu kind less Lond manner means ment metal mind Monogynia class moral motion mucilage muriatic muriatic acid Natural order neral nitre nitric acid object observed Oleum organzine oxide oxygen pains parabola parallax parallel passions pendulum perpendicular person plane Plate pleasures potash principle produced quantity Radix rays refraction respect salt seeds sensation sensible shell shew side sion solution species specific gravity stances substances sulphur supposed syrup term tinc tincture tion ture vapour vessels volatile oils weight