The British Encyclopedia: Or, Dictionary of Arts and Sciences. Comprising an Accurate and Popular View of the Present Improved State of Human Knowledge, Volume 4Mitchell, Ames, and White, 1818 - Natural history |
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... parallel to the base of the cone : draw a plane through the vertex , parallel to the plane P Q , and let it cut the base in the line M N : draw A D through the centre of the base perpendicular to M N , and let a plane drawn through V ...
... parallel to the base of the cone : draw a plane through the vertex , parallel to the plane P Q , and let it cut the base in the line M N : draw A D through the centre of the base perpendicular to M N , and let a plane drawn through V ...
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... parallel passes through the centre ; and therefore it must coincide with the line that bisects one of the parallels , and is drawn through the centre . PROP . XV . Fig . 27. All the diameters of a parabo- la are parallel to one another ...
... parallel passes through the centre ; and therefore it must coincide with the line that bisects one of the parallels , and is drawn through the centre . PROP . XV . Fig . 27. All the diameters of a parabo- la are parallel to one another ...
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... parallel to PQS , an ordinate of the diameter FH ; draw the diameter P R and join S R cut- ting E D in T. Because PQ = QS , and PGGR ; therefore SR is parallel to FH . And because E D is parallel to P QS and PG = GR ; therefore R T = TS ...
... parallel to PQS , an ordinate of the diameter FH ; draw the diameter P R and join S R cut- ting E D in T. Because PQ = QS , and PGGR ; therefore SR is parallel to FH . And because E D is parallel to P QS and PG = GR ; therefore R T = TS ...
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alkali alum Ammonia angle animal appear axis Barytes base bath bisect blue body boiled botany called calyx capsule carbonic carbonic acid centre circle class and order colour common CONCHOLOGY cone conic section conic surface copper corolla cotton court crystals curve degree diameter dissolved draw drawn dyeing earth ellipse equal Essential character figure five flowers fluid four galls genus heat heraldry hyperbola inches iron Jussieu kind length less lime liquor Magnesia matter ment Monogynia class motion multivalve muriatic Muriatic acid native Natural order nitric Nitric acid observed opposite hyperbolas Oxide parabola parallel person petals plane plants Plate potash pounds produced proportion quantity racter right line salt seeds shade shell side silk Soda solution sometimes species square stomach Strontian stuff substance sulphate sulphuric acid tangent tartar tion valve vessel weight wool yellow