Philosophical transactions, Vol. L. Part II. For the year 1758Note 26 — LXX. Trigonometry abridged. By the Rev. Patrick Murdoch, A. M. F.R.S.Reading editionSee Logarith. Canon. deser. Edinb. 1614. p. 48.◇Copy noteReturn to LXX. Trigonometry abridged. By the Rev. Patrick Murdoch, A. M. F.R.S.