TO 



HIS EXCELLENCY 



THE DUKE OF NORTHUMBERLAND, 



LORD LIEUTENANT OF IRELAND, 



&c. &c. &c 



THE MUNIFICENT AND ENLIGHTENED PATRON 



OF AGRICULTURE AND SCIENCE ; 

 THE FOLLOWING PRACTICAL TREATISE IS, 



BY PERMISSION, 



MOST RESPECTFULLY DEDICATED BY HIS 



excellency's MOST FAITHFUL 



AND VERY HUMBLE SERVANT, 



ROBERT MONTEATH. 



Edinburgh, 10th June 1829. 



