110 Scientific Newt, Accounts of Sooht C#r. 



They require, however, that the perfons fending fpeclmens fhall comply with the fol- 

 lowing conditions : 



That the fpecimen be about three or four pounds in weight, inclofed in a deal box pro- 

 perly packed with hay, and along with it an account be added of the parilh and county 

 from which it is procured, the name of the fender and his addrefs per poft, and an anfwer 



to the following queries What is the depth of the foil ? — What the nature of the fub- 



foil ?— is it on a hill or level ground ? and, if the former, what is the afpeft ? — how near 

 to any river or ftream ? — and is the foil itfelf dry or fpringy ? — what is the rotation of 

 crops which it ufually bears? — ^has it ever been limed or had any other earth laid on ? 

 Any other particulars worthy of notice may alfo be added, and a fpecimen of the fub-foil 

 ihould all be inclofed. 



Before the fpecimen is packed up, it fhould be gently dried, either in the fun or in any 

 warm place, for a few days, but muft on no account be heated over a fire. 



The box containing the fpecimens muft be fent carriage ^aid to Mr. W. H. Pepys, Jun. 

 No. 24, Poultry, London. 



The fociety intend, if confiftent with their other occupations, to return the refult of the 

 analyfis within two months of the arrival of the fpecimen. 



London, Jpril 16, 1 801. 



Four EJfays on PraBlcal Mechanics ; thefirjl on Water Wheels ; the fecond on the Steam Engine ; 



the third on Mills ; and the fourth on the Simplification of Machinery. By Thomas Fenwick, 



Coal Viewer. 8vo. p. 84. Newcaftle upon Tyne, printed for the Author, and fold by 



Mawman, London. 



THE particular advantage of this treatife is, that It is written with fuch plainnefs that 

 the inftruftions it contains may be carried into efFe£l by thofe whofe acquifitions extend no 

 farther than the firft rules of common and decimal arithmetic ; in addition to which, as 

 the fafts are all deduced from obfervations and experiments on a large fcale of aftual work, 

 all defcriptions of men may receive advantage from his data rcfpefting mills> fteara 

 engines, &c. 



