I am, with great submission and respect,

My Lord,

Your Lordship's
Most devoted,
and most obliged,
humble Servant,
Emanuel Mendes da Costa.

London, 27 April, 1757.

XXIX. A Catalogue of the Fifty Plants from Chelsea Garden, presented to the Royal Society by the worshipful Company of Apothecaries, for the Year 1756, pursuant to the Direction of Sir Hans Sloane, Baronet, Med. Reg. & Soc. Reg. nuper Præses, by John Wilmer, M. D. clariss. Societatis Pharmaceut. Lond. Socius, Hort. Chels. Præfect. & Prælector Botan.

Read April 28, 1757.


XXX. Remarks on the Opinion of Henry Eeles, Esq; concerning the Ascent of Vapour, published in the Philosoph. Transact. Vol. xlix. Part i. p. 124. By Erasmus Darwin, M.D. Communicated by Mr. William Watson, F.R.S.

To Mr. William Watson, F.R.S.