A treatise of such mathematical instruments as are usually put into a portable case, containing their various uses. In arithmetic, geometry, trigonometry, architecture, surveying, gunnery, etc., with a short account of the authors who have treated on the proportional compasses and sector. To which is now added an appendix containing the description and use of the gunner's callipers / [J. Robertson].

  • Robertson, J. (John), 1712-1776.
Date:
1757
Catalogue details

Licence: Public Domain Mark

Credit: A treatise of such mathematical instruments as are usually put into a portable case, containing their various uses. In arithmetic, geometry, trigonometry, architecture, surveying, gunnery, etc., with a short account of the authors who have treated on the proportional compasses and sector. To which is now added an appendix containing the description and use of the gunner's callipers / [J. Robertson]. Source: Wellcome Collection.

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    ERRATA. Page xvi. read March 5,1757. p. 10. Line 16. for Plate iii read Plate iv. p. 12. 1. 15. for KF r. KC. p. 26. 1. 26. for into r. in. p. 40.1. 19. for Scale r. Scales, p. 63. 1. 6. dele K. 1. 29. for B3r. B5. p. 80. 1. 9. r. As the divifor, is to unity; fo is the dividend, to the quotient. And as the di- vifor, is to the dividend; fois unity, to the quotient, p. 81. 1. 19. for 25 r. 35. p. 95. 1. 23. for xvii r. xviii. p. 96. 1. 12. read Ex. 1. PI. vi. Fig. 26. p. too. 1. 4. for N. r. x. 1. 20. forN. r. x. p. 101. 1. 34. for N r. x. 1. 35. for M r. z. I.36. forNr. x. p. 107. 1. 1. forxviii r. xix. p. 109. 1. 17. for on B read on P. p. no. In the computation for the letter C read D. p. 125. 1. 24. for xix read xx. I 71 Page 128. p. 12. for Ac=i—— N read Acz=.—~-N. 0 r n-\-l n-j-i 71 Line 16 for -read--, p. 145.1. 19.for \ r. -J. p.149.1.24.