Description of a JVew Method of heating by Hot Water. 23 



years, by which time a fresh plantation should be made to suc- 

 ceed them. The young plants will bear some fruit the first year, 

 and come into full bearing the second after planting. If they 

 are suffered to remain longer without renewing than the time 

 specified, they will degenerate, and bear small fruit: frequent 

 hoeing and cleaning between the rows is a very necessary pro- 

 cess, and should not be neglected. The following are the sorts 

 best worth cultivating: — 



Nottingham Scarlet Smooth Cane, Large Red, 



AVhite Antwerp, Barnet, 



Red Antwerp, Early White, 



Smooth Cane Double-bearing', Large White, Stc. &c. 



Messrs. Thomas and William Mason, Charlestown Vineyard, 

 have a collection of fine sorts for sale. 



I am yours, Stc 



J. W. Russell, 



Mount t^uburn, Cambridge, Dec. 12th, 1S36. 



Art. IV. Description of a JVeio Method of heating Pits for 

 forcing, or Pits in stoves, for tropical plants, tvith Hot Water; 

 frst erected in the garden of Mr. S. Sweetser, Cambridgeport. 

 By the Conductor. 



« 



A GREAT variety of methods have been devised, in England, 

 to apply heat to pits for forcing, and for other purposes connect- 

 ed with gardening. Brick flues, steam, and hot water, have 

 each been tried, and each at the time of their i"nvention been ap- 

 proved of: subsequent improvements on each have been made, 

 but the mode now most generally adopted is either by steam or 

 hot water; brick flues having been dispensed with, as giving out 

 an uneven and too drying a heat. Steam pits are formed by 

 running perforated pipes through a quantity of loose stones, over 

 which is the soil, for setting in the plants, or for plunging in pots; 

 the stones become heated and hold their warmth, and give it out 

 gradually and very evenly to the soil. Hot air-chambers, warmed 

 by steam pipes running through them, have also been adopted. 

 But the former method, in conjunction with hot water, is now 

 thought to be the best. It was invented and first apphed to 



