Earls of Cromartie > [NSLBLANK]

22 THE GROM ARTIE CORRESPONDENCE.
13. Henry Oldenburg, 1 Secretary to the Eoyal Society, to Sir George
Mackenzie, Lord Tarbat.
London, May 24, 1675.
Sir, — The communications concerning the contry where you have an
interest, imparted by you to the learned Mr. James Gregory, and by him con-
veyed to me, and by me exhibited to the E. Society, were so well received by
that illustrious body, that they commanded me to return you their very
affectionat thanks for your care and concern in contributing to that Philo-
sophical Magazin they are about to lay in, in order to make in time such a
structure of Natural Philosophy as may be more solid in the theory and
more beneficial for practice and the uses of human life. They entertain
great hopes, Sir, that as you have begun this good work, so you will continue
and pours ue it, by communicating to them whateuer shall occurr further to
you belonging to the natural history of that contry, and the ceconomy of the
inhabitants thereof; not doubting but all such observations shall be pre-
served in our Eegister-books with great care, and with due respect to your
person and merit, as well as it shall be always duely acknowledged with all
ingenuous gratitude.
We doubt not, Sir, but as the observations you make yourself are exact,
so you take care that such as you receive from others may come from judi-
cious and veracious persons, as well attested as may be, to the end that we
may lay vp nothing in our philosophical storehouse but what is supported
1 Oldenburg was the friend and correspondent of Milton and of many other eminent men.