£993: new unprovementse T45 
5. It also admits of being loaded and unloaded at a 
smaller expence than in buildings of the usual construc- 
tion. 
My informantsays thisis not a mere theoretic idea ; for he 
hasseen it actually carriedin part into execution, where it 
has been found to answer perfectly, in, as far as has been 
tried ; he has also seen the whole of the drawings, by 
means of which he understands the principle, and thinks 
when fully executed it is so simple as not to be liable to 
be put out of order, and must be very lasting; so that 
he conceives it to be a very material improvement. 
2. An improved baker's oven. 
This is merely an extention of the principle applied a. 
bove, adapted to the form of an oven, and pofsefses all the 
advantages above stated ; wz, saving of fuel; preservati« 
on of the bread pure and uncontaminated either by the 
smoke or afhes ofthe fuel. It admits moreover of having 
the heat raised or moderated at pleasure, so as to adapt 
it precisely to the purpose required at the time. 
No contrivance, our informant thinks, has ever yet been 
evented equal to these two for drying all kinds of green 
vegetables, or evaporating moisture for any purpose in 
arts. In the kiln the evaporation can be carried on as 
slowly as may be wanted ; and itmay be easily so construc- 
ted as either to have the benefit of the rays of the sun, or 
the fhade, as may be most requisite 3 and in the oven the 
exsiccatjon can be pulhed as far es can be necefsary for a- 
ny purpose. In both cases a contrivance is, adopted for 
carrying off the damp air as it arises from the substances 
* drying 
3. An economical chamber stove. 
This is merely an improvement of the chamber stove 
already in universal use in Sweden, which, he thinks, 
might be introduced with great propriety among the poor 
in Britain, where much fuel is spent unnecefsarily. These 
VOL. xvii, T + 
