Thesaurarium mathematicae, or, The treasury of mathematicks containing variety of usefull practices in arithmetick, geometry, trigonometry, astronomy, geography, navigation and surveying ... to which is annexed a table of 10000 logarithms, log-sines, and log-tangents / by John Taylor.

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Title: Thesaurarium mathematicae, or, The treasury of mathematicks containing variety of usefull practices in arithmetick, geometry, trigonometry, astronomy, geography, navigation and surveying ... to which is annexed a table of 10000 logarithms, log-sines, and log-tangents / by John Taylor.
Author: Taylor, John, mathematician.
Publication: London :: Printed by J.H. for W. Freeman,; 1687.
Rights/Permissions: To the extent possible under law, the Text Creation Partnership has waived all copyright and related or neighboring rights to this keyboarded and encoded edition of the work described above, according to the terms of the CC0 1.0 Public Domain Dedication (http://creativecommons.org/publicdomain/zero/1.0/). This waiver does not extend to any page images or other supplementary files associated with this work, which may be protected by copyright or other license restrictions. Please go to http://www.textcreationpartnership.org/ for more information.
Subject terms: Mathematics -- Early works to 1800.
Link to this Item: http://name.umdl.umich.edu/A64224.0001.001
Cite this Item: "Thesaurarium mathematicae, or, The treasury of mathematicks containing variety of usefull practices in arithmetick, geometry, trigonometry, astronomy, geography, navigation and surveying ... to which is annexed a table of 10000 logarithms, log-sines, and log-tangents / by John Taylor." In the digital collection Early English Books Online. https://name.umdl.umich.edu/A64224.0001.001. University of Michigan Library Digital Collections. Accessed June 23, 2025.

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PROP. II.

By knowing the Measure of a Ship, of one Burthen, to make another Ship, of the same Mould, which shall be double, or triple, or in any proportion, either more or less than the said Ship.

First you shall multiply the Keel Cubically; and in like manner every Beam; the Mid ship Beams multiply them Cubically; and also the Reaking of the Ship, both at Stem, and Stem∣Post, multiply them Cubically; likewise the principal Timbers, that doth mould the Ship, multiply them Cubically; and the depth of the Hold, multiply it Cubically; and so conse∣quently every Place, or Places, which doth lead any work, multiply them Cubically; then if it be required to have a Ship as big again, or thrice as big; double, or triple each respec∣tive Cubical number; then by prop. 9. §. 1. chap. 1: Or by prop. 4. §. 2. chap. 2. find the Cube∣roots thereunto belonging; then according unto these respective Numbers, make your Keel, your Timbers, Beams, &c. which being done, you shall make a Ship of the Mould and Pro∣portion desired.