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 Jethro Wood's Improved Patent Cast-Iron Plough . 



(See Plate.) 



The mould-plate, share, and land-side of this plough are cast- 

 iron. The mould-plate is of a superior construction ; it combines 

 the mechanical principles of the wedge and screw, in raising and 

 inverting the furrow-slice. The share is attached to the mould- 

 plate by screws; the beam is also raised and lowered by a screw : 

 and a wrench, for the purpose of raising and lowering the beam, 

 and also for taking off and putting on the shares, serves as a bolt 

 for the devise. 



Ploughs upon this principle are made and sold by 

 JOSEPH BARNARD Sf SON, 



Market street, between Schuylkill Third and Fourth streets. 

 Philadelphia. 



J. B. & Son endeavour to unite beauty with utility in their 

 ploughs, and they warrant them to answer the purpose for which 

 they are designed, in every respect. In consequence of the pe- 

 culiar shape of the mould-plate, it escapes, in a great measure, 

 that friction to which all ploughs are subject in raising the sod or 

 furrow-slice ; it is therefore easier in the draught than any other 

 plough now in use. 



The cast shares are furnished at sixty cents each, and are war- 

 ranted not to break, even in the most stony soil. Wrought shares 

 can be furnished, if required, at two dollars each ; and if neces- 

 sary, the coulter can be connected with the point of the share. 



Scientific and practical farmers are respectfully invited to call 

 and examine the plough, and, if they please, give them a trial, 

 and if they do not answer their purpose, return them. 



fCT All orders promptly executed. 



