[ ^30 1 



that when a barn is cleared out juft before harveft, 

 a pan of charcoal be lighted up in it, and fome 

 pieces of brimftone thrown on the fire, to fumigate 

 the whole barn. If the doors and windows are fhut 

 clofe, this will be done moft efFedlually. 



4thly. Having a field overrun with moles, I had 

 the frefh mole-hills fhovelled off, and the holes 

 opened j I burnt a match in each, keeping in the 

 fmoak. The confequence was, that all the moles 

 left the field diredly, and returned no more. But 

 fhould they return in future, it is only repeating 

 the experiment, and I doubt not but it will have 

 the fame effed:, 



I fhall now conclude for the prefent; but may 

 probably employ fome future hours in fending fuch 

 other obfervations as may occur in the courfe of my 

 experience ; and which may be ufeful in promoting 

 the laudable purpofes intended by your inftitution, 

 to which I wifh all poflible fuccefs. 



And am, with great relpe(5b, 

 yours, &c* 



J. JACOB. 



jjlrne, near JVareham^ "Dorjetjhire^ 

 Jan. 20, lySor 



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