494 



Neiso System of heating Plant Structures. 



horses and beasts of burthen. Pork, onions, Spanish pepper, 

 and similar spices, when mixed together, and surrounded with 

 paste, are packed in these leaves, and called Agapa. 



The filamentaceous spiral tissue of the stem is of a light 

 material, which easily catches fire, and is therefore used as 

 tinder. The juice of the Musa has the very inconvenient pro- 

 perty of producing brown spots on any white stuff on which it 

 may happen to come, and nothing has yet been found that will 

 discharge it. 



Art. V. A nexio Syatem of heating Plant Structures.. By 

 Alexander Forsyth. 



Herewith I send you a section [Jig. 52.) illustrative of a 

 new system of heating garden structures, generating " bottom- 

 heat " and " top-heat" moist 

 or dry, without pipes or flues, 

 dung, hot water or steam, tan, 

 or any other fermenting mate- 

 rial, by the agency of fire only, 

 in its cheapest and simplest form ; 

 that is, an open ingle in a kil- 

 logie. By this contrivance, the 

 labourer, with axe and spade 

 only, may erect a hotbed for a 

 three-light cucumber frame in a 

 summer's evening, without wast- 

 ing a penny-worth of materials, 

 not even an iron nail or a 

 rick ; for the wooden sleepers 



Fig. 52. Section of Hotbed on Forsyth's System, marked d, being of WOrthleSS 



undressed timber, will be all the better for six months hard 

 drying before. they are cut up for fuel, consequently this cannot 

 be called waste. J' is the fuel on the hearth, being weeds, turves, 

 roots, coals, cinder, &c. &c.; c is the radiator, of old iron hoops, 

 platted like a sieve, for the obvious purpose of dispersing and 

 regulating the heat as it ascends to the bed ; it is about a 

 square yard in size, and hangs immediately over the ingle; J, 

 the wooden sleepers, with the flooring of rough sticks laid 

 across them. One layer of turf and one of sand complete the 

 whole bed, ready for the hill (a), in which the cucumbers or 

 melons are to be sown, e, the rafters and lights : the walls are 

 of turves, to save the expense of the three-light frame or box. 

 k is the drain for the smoke, regulated in its draught by a stone 

 on the top of the turf chimney; hb, the original ground level. 

 From g g toh h\s 10 ft., ^ to ^ about 6 ft. Whoever wants any 



