$1 on educntion. yuly if^ 



enable them to form such a comprehensive idea of 

 the manner of combining the different powers, — cf cor- 

 recting their defects, and adapting them for parti- 

 cular purposes, that they would be able to invent 

 With great facility, new machines fitted for every 

 emergency that might occur. 



In consequence of the little attentron that is at 

 present bestowed on matters of this kind, m^ny 

 excellent mechanical inventions have been adopted 

 in oue part of the country, a great many years be- 

 fore they are' known or thought of in another. 

 Mills of all sorts for grinding grain, aiFord a clear 

 example of this ; for every district has its own par- 

 ticular model, which is there adhered to most religi- 

 ously for ages, I had almost said, after others much 

 more perfect have been executed in other parts of 

 the country. On other occasions, machines of ve- 

 ry great utility are not so much as heard of in one 

 district, though they be universally employed in an- 

 other. The winnowing machine affords an ex- 

 ample of this sort, it was only very lately intro- 

 duced into London as an invention almost new ; and 

 has not till this hour been ever heard of by many 

 thousands of respectable farmers in England, though 

 in one district in Scotland, it has been known for 

 upwards of fourscore years ; and has been there so 

 long generally used, that few persons could there be 

 found who ever saw grain winnowed in any other 

 way. 



Astroriomy. 



A particu''ar course, inte iicJ for those who wilh 

 to acquire a thoiough knowledge of this sublime 



