282 J\'*otes on some of the. Gardens 



ends of the house; the other pipes forming the communica- 

 tion hetween the bottom of the boiler and of the cistern. 



Square wooden tubes, of about eighteen inches by twelve, 

 and formed of boards, and connected with the back wall, 

 carry the heated air upwards, from the air chamber, into the 

 highest parts of the house. These tubes are arranged at the 

 distance of about six or eight feet asunder throughout the 

 whole extent; the heated air, thus admitted in the back part, 

 soon fills the house. In the front, and in the lowest part of 

 the house, is a walk from end to end, the bottom of this 

 walk being formed of gratings composed of bars of iron or of 

 wood; and through these gratings the cooler air descends 

 continually, passing to the rear by subterraneous passages, to 

 be heated anew. Thus the circulation can be rendered per- 

 petual. 



At that establishment, several distinct buildings are warmed 

 by a single boiler; the hot water pipes being conducted on 

 the surface of the earth, and protected from the cold by a 

 slight covering. 



According to Mr. Loudon, Mr. Wilmot even asserts, 

 that, compared with this new system of heating and of circu- 

 lation, all other systems are a farce.* The pine-apples, also, 

 which are raised by this mode, are stated to be far superior 

 in flavor to all others artificially raised by other modes. Per- 

 kins's system of heating by small hot water pipes, is another 

 new and extraordinary system, and the most sanguine hopes 

 and expectations are entertained of its results. 



I am aware that Dr. Lindley and some others have ob- 

 jected to the particular system adopted by JNIr. Wilmot, but 

 I know not with what sufiicient cause. It might perhaps be 

 an improvement to invert the arrangement, and allow the 

 heated air to arise through the gratings of the walk in front, 

 instead of descending at that place, and having arisen and 

 passed upwards, to allow it to descend on the back side, and 

 having passed by the subterraneous passage to the front, and 

 becoming heated anew, allow it thence again to rise. 



The varieties of grapes which are cultivated at Mr. Wil- 

 mot's almost exclusively, and, from long experience, most 

 approved by him, for great productiveness and profit, are the 

 following four kinds chiefly: — Wilmot''s early Muscat; JVew 



[* Some remarks on this system, or Penn system, so called, will be 

 found in our Vol. VI., p. 144. — Ed.'\ 



