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furnaces, with a fmaller quantity of fuel, — the force and application 

 of pure air, — the properties and application of various other airs, in 

 manufafture, — the ufe of manganefe, and in what parts of the king- 

 dom it may be found. Finally, fcience and philofophy fliould be in- 

 vited, to take a comprehenfive view of arts and manufaftures, and to 

 inftitute experimental enquiries, how the procefs, in each, might be 

 fliortened or fimplified ! How time and labour might be abridged, — 

 how the expence of fuel might be diminiflied, — how the quantity of 

 room, the extent of buildings, the complexity of apparatus requifite, 

 at prefent, in the various operations of raanufafture, may be con- 

 trafted. 



Vegetable alcaline fait is a material of prime importance, in the ma- 

 nufafture of foap, and in the procefs of many other manufaftures ; 

 chemiftry, analyfing and comparing many vegetable fubftances, difco- 

 vers, that wormwood yields the largeft proportion of this fait. The 

 farmer, under the direftion of the chemifl:, and with the encourage- 

 ment of the legiflator, might be led, to cultivate extenfively this ufe- 

 ful vegetable, and taught to prepare the fait ; and thus, large fums 

 of money, which are now annually drawn off the country, for the 

 purchafe of barilla, might be retained at home. 



No department of public utility, has been left unexplored, by fcience, 

 in France. Under the direftion of chemiftry, a grand projeft was con- 

 ceived, and has been executed to a confiderable extent, — a fubterra- 

 nean mineralogical furvey of the country, accompanied with fubterra- 

 nean maps or charts, illuftrating the nature of the foil, and the mineral 

 produaions of the feveral diftrifts. It is , eafy to fee the importance 

 of fuch furveys to medicine, to manufaftures, and to agriculture. 



Above all things, it would be of the utraoft national utility, to turn 

 the attention of philofophy, and direft the fpirit of adive refearch, to 

 ■the difcovery of that fubterranean wealth, which, no doubt, is copi- 

 oufly ftored, in the rcceffes of the earth ; and particulariy to the dif- 

 covery 



