240 Obituary. 



Heating by Hot Water. — I think the steam challenge is a fail" one, and 

 hope it may be tried with care and attention. I am inclined to think that 

 steam is the best mode of heating any large bulk of matter, although water 

 or gravel may be the safest medium for applying it to plants. Could hot 

 water be used in forcing melons with greater advantage than dung, or even 

 with equal benefit ? If so it will be of great advantage in situations where 

 stable manure is not easily got.— W. M. Ar gyle shir e^ Nov. 6. 1828. (See 

 England, p. 215., and Mr. Byers's article, p. 20.) 



Art. XII. Obituary. 



Died, Jan, 28., at the early age of forty years, Thomas Tredgold, Esq., 

 civil engineer, author of several valuable works on different branches of his 

 profession. As a scientific engineer, Mr. Tredgold was at the very head of 

 his profession, and to this distinguished eminence he raised himself entirely 

 by his own studies at his leisure hours ; having come to London, about 

 twenty years ago, with nothing more than the common education of 

 a country mechanic. The only advantages that he had were,«being placed 

 in circumstances which brought into his view certain points of scientific 

 eminence; and having access to books, the points which he saw had been 

 attained by others he set about attaining himself, one after another, till he 

 mastered the whole. His last work, as a practical engineer, was the heating 

 of the splendid botanic hot-houses at Syon House ; the most complete 

 work of the kind, and on the most extensive scale, that has hitherto been 

 executed in this or any country. 



On the 1 5th of February, aged seventy years, Mr. James Grange, 

 fruiterer, Covent Garden Market and Piccadilly, and, some years ago, the 

 occupier of a fruit and market garden at Kingsland, of sixty acres, on which 

 he spared no expense, and executed the most spirited improvements. He 

 furnished the prices of Covent Garden Market for the first three volumes 

 of the Gardener's Magazine. He had a good practical knowledge of fruits, 

 and was a devout Christian. 



On the 1 5th of February, at Kingston upon Thames, Mr. James Astin, 

 well known as a florist. 



At his house in Kensington Gore, on the 28th of February, Thomas 

 Weare, Esq., nephew to the late Mr. Jeffrey, of the Brompton Park Nur- 

 sery, and many years partner with Mr. Gray of that establishment. He 

 retii'ed from business some years ago, much respected in his profession, and 

 among all his neighbours. — W. M. ^ 



On March 22d, at his house Beaufort Row, Chelsea, William Stevenson, 

 Esq., author of the Agricultural Surveys of Surrey and of Dorsetshire, and 

 of various other works, and of several papers and reviews in this Magazine. 

 He was a man of high and immovable moral principle, and of the soundest 

 views on every subject of literature and science. The Conductor had the 

 advantage of his friendship for upwards of twenty-five years, and, in common 

 with all who knew him, deeply deplores his loss. 



