24 MODE OF HEATING 



out learning much, tliougli slender be the resources at his com- 

 mand for communion. A more interesting and attractive 

 companion in this respect than the Lepclia I never lived with : 

 cheerful, kind, and patient with a master to whom he is attached ; 

 rude but not savage, ignorant and yet intelligent ; with the simple 

 resource of a plain knife he makes his house and furnishes yours, 

 with a speed, alacrity, and ingenuity that whiles away that well 

 known long hour when the weary pilgrim frets for his couch. 

 In all my dealings with them they have proved scrupulously 

 honest. Except for drunkenness and carelessness, I never had 

 to complain of any of the merry troop, some of whom, bare- 

 headed and bare-legged, with absolutely nothing but a cotton 

 garment and long knife, followed me for three months on a 

 recent occasion, from the scorching plains to the everlasting 

 snows. Ever foremost in the forest or bleak mountain, and ever 

 ready to help, to carry, to encamp, collect, or cook, they cheer 

 on the traveller by their unostentatious zeal in his service, and 

 are spurs to his progress ; for who would not go forwards where 

 such followers are behind ? 



II. — Mode of Heating adopted at Porthgwiddeti, 7iear Truro, 



By the Rev. T. Phillpotts, F.H.S. 



(Communicated Sept. 29, 1851.) 



The accompanying plans and sections refer to a forcing-pit, 

 orchid-house, and cutting-frame, erected at this place, under my 

 own direction, early last year. Their success has been so com- 

 plete in all points, that I place the details at your disposal, 

 that others may, if they think fit, pi'ofit by my experience. Real 

 usefulness rather than display has been my object, and I lay no 

 claim to novelty or invention beyond what a practical rather 

 than a scientijic adaptation or modification of the plans of 

 others, avoiding as far as possible their defects, may deserve. 



Without discussing other systems, their merits and demerits, 

 I will only say, that I have for many years paid much attention 

 to the best method of constructing and applying heat (especially 

 bottom heat) to horticultviral buildings. The Tank system and 

 the Polmaise have both been tried by me at different times (under 

 the personal advice of Messrs. Rendle and Meek), honestly and 

 without any prejudice ; but after the expenditure of a good deal 

 of time, trouble, and money, I have arrived at the conclusion 

 that an apparatus consisting of hot water in pipes, with open 

 troughs connected with them, affords the simplest and cheapest, 



