as a Vehicle for transporting Heat. 337 



and be carried through a doorway of the common width, 

 with this machinery, and the steam-tubes belonging to 

 it, and a few wooden tubs, a complete public kitchen, 

 for supplying the poor and others with soups and 

 also with puddings, vegetables, meat, and all other 

 kinds of food prepared by boiling^ might be established 

 in half an hour in any room in which there is a chim- 

 ney (by which the smoke from the portable fireplace 

 can be carried off); and when the room should be no 

 longer wanted as a kitchen, it might, in a few minutes, 

 be cleared of all this culinary apparatus, and made ready 

 to be used for any other purpose. 



This method of conveying heat is peculiarly well 

 adapted for heating baths. It is likewise highly probable 

 that it would be found useful in the bleaching business 

 and in washing linen. It would also be very useful in 

 all cases where it is required to keep any liquid at about 

 the boiling-point for a long time without making it boil ; 

 for the quantity of heat admitted may be very nicely 

 regulated by means of the brass cock belonging to the 

 steam-tube. Mr. Gott showed me a boiler in which 

 shreds of skins were digesting in order to make glue, which 

 was heated in this manner ; and in which the heat was 

 so regulated that, although the liquid never actually 

 boiled, it always appeared to be upon the very point 

 of beginning to boil. 



This temperature had been found to be best calculated 

 for making good glue. Had any other lower tempera- 

 ture been found to answer better, it might have been 

 kept up with the same ease, and with equal precision, 

 by regulating properly the quantity of steam admitted. 



I need not say how much this country is obliged to 

 Mr. Gott and his worthy colleagues. To the spirited 



