32 ON THE TANK SYSTEM OF HEATING GREENHOUSES, ETC. 



his ngain resuming his professional duties as a landscape gardener ; 

 and this veteran of science and literature may be truly said to have 

 fallen a victim tp that neglect which has too often been in this 

 country the only return for the most substantial and enduring be- 

 nefits. 



" Those who knew Mr. Loudon in private life will long entertain a 

 deep regret for his loss, and will always cherish a remembrance of 

 his truly excellent character and disposition. His vast and com- 

 prehensive talents were indeed ' clothed with humility,' and were 

 freely offered wherever they could be of use. He was most affec- 

 tionate in all the relations of private life — generous in hospitality — 

 candid in expressing his opinions — and an untiring and zealous advo- 

 cate of every moral and social improvement, setting forth at all times 

 an example of honourable industry and of public and private worth. 

 He was a member of many of the leading scientific societies of Europe ; 

 and none have laboured with greater zeal in the several departments to 

 which his energies were directed. He expired at noon, on Thursday, 

 the 14th of December, after a lingering illness, to the great grief of 

 all who had the happiness of enjoying his friendship, and of knowing 

 those excellent qualities of his mind which alone exceeded the extent 

 and value of his literary and scientific labours." 



Felton Bridge End, January 10, 1844. 



ARTICLE IV. 



REMARKS ON THE TANK SYSTEM OF HEATING GREENHOUSES, 



HOTHOUSES, &e. 



BY C. C. OF SOMERSETSHIRE. 



Hoping that the following observations on the tank system of heating 

 greenhouses, &c. will be in some degree serviceable to the readers of 

 the Cabinet, I forward them for insertion therein. 



The remarks will be confined at present to the tank itself, the con- 

 struction of which is very liable to error, which I, as a well-wisher, 

 would try to remove. The tank altogether should be not less than 

 one foot six inches deep inside; it may be formed with wood, brick, 

 or stone; if with wood, it should not be less than two inches thick. 

 To make the tank complete, it must be lined with lead or zinc, rather 

 more than the height of the water. About the centre of the tank, 



