His booksellers being unwilling to incur the pecuniary hazard attending this work, it was transmitted by Mr Ray to his friend Dr Hotton, professor of botany at Leyden, who got it printed in 1703. The Dutch publishers inserted in the titlepage that it was printed at London for Smith and Walford, the persons who usually took charge of his books; and although the author objected to this proceeding they disregarded his wishes, alleging, that "it was customary among the printers to say what they thought would be for their interest in such cases." This production was very favourably received on the Continent, and Hotton used it as his text-book. In a letter to Dr Derham, written in May 1702, he thus describes his condition:--"It is not many years since I applied myself to the observation and search of insects, in order to compose an history of them; but now I am wholly taken off from that study, by the afflictive pains I almost constantly labour under, by reason of ulcers upon my legs, I having not been half a mile out of my house these four years; and though I have made use of many means, and have had the advice of some of the most skilful surgeons and physicians, yet without success, growing yearly worse and worse. Besides, I have been very much haunted with a troublesome diarrhoea, frequently recurring; so that you may well think I can have but little heart to mind natural history: But I am yet so far engaged, that I cannot shake it off. I have now just ready to go under the press a third volume of the History of Plants, being a supplement to the two former volumes, which hath engrossed almost my whole time for two whole years. Besides, I have a little book now printing at Leyden, in Holland, entitled Methodus Plantarum emendata et aucta." We now approach the termination of the career of this truly great man, who was distinguished not less for his fervent piety than for his extensive knowledge and unwearied application. The last letter which he wrote was to Sir Hans Sloane, and is as follows:-- "DEAR SIR,--The best of friends. These are to take a final leave of you as to this world. I look upon myself as a dying man. God requite your kindness expressed any ways towards me an hundred-fold,--bless you with a confluence of all good things in this world, and eternal life and happiness hereafter,--grant us an happy meeting in heaven. I am, Sir, eternally yours, JOHN RAY. "Black Notley, Jan. 7, 1704."