A Treatise of Mechanics, Theoretical, Practical, and Descriptive, Vol. 1 (Classic Reprint): Containing the Theory of Statics, Dynamics, Hydrostatics, Hydrodynamics, and Pneumatics
Excerpt from A Treatise of Mechanics, Theoretical, Practical, and Descriptive
Admitting the truth of these observations  and their truth I think cannot well be denied  it will thence follow,'that theoretical and practical men will most effectually promote their mutual interests, not by affecting to despise each other, but by blending their efforts and further, that an essential service will be done to mechanical science, by endeavouring to make all the scattered rays of light they have separately thrown upon this region of human knowledge con verge to one point. In conformity with these ideas, I have under taken a'task, attended, I am aware, with so many difficulties, that even failure will not be disgraceful; while, on the other hand, success, if my labours should fortunately be crowned with it, will be doubly gratifying; as I shall then ?atter myself with having con tributed in some measure to the union of accurate theory and judi cions practice, and thus, ultimately, to the promotion of arts and manufactures. The Treatise of meichanms I now presume to lay before the public is comprised in two volumes, besides a volume of plates; Of these, the first volume is devoted chie?y to the the second is practical and descriptive. The theoretical part is divided into five books, and these are subdivided into chapters, as the na ture of the several subjects seemed to require.
Olinthus Gilbert Gregory (29 January 1774 – 2 February 1841) was an English mathematician, author and editor.
He was born on 29 January 1774 at Yaxley in Huntingdonshire. Having been educated by Richard Weston, a Leicester botanist, in 1793 he published a treatise, Lessons Astronomical and Philosophical. Having settled at Cambridge in 1796, Gregory first acted as sub-editor on the Cambridge Intelligencer, and then opened a booksellers shop. In 1802 he obtained an appointment as mathematical master at the Royal Military Academy, Woolwich through the influence of Charles Hutton, to whose notice he had been brought by a manuscript on the Use of the Sliding Rule; and when Hutton resigned in 1807 Gregory succeeded him in the professorship. Failing health obliged him to retire in 1838, and he died at Woolwich on 2 February 1841.