A new Method of rearing VouUry. 121 



a key the screw which moves the balance contained in the 

 bottom of the inner tube. 



Certificates from Mr. J. W. Gooch, JSIr, Charles Lay- 

 ton, and Mr. Benjamin Holmes, testify that they have seen 

 in use the level invented by Mr. Richard Drew, and that the 

 business is done by it with accuracy and dispatch. 

 Reference to the Engraving of Mr. Richard Drew's Balance 

 Level. Plate IV., Fig. 1, 2, 3, 4. 



Fig. 1. The balance level, mounted on a ball and socket 

 joint, with a tube, a, to fix on a stand. 



Fig. 2. A section, hhcc two tubes of tin which slide 

 on a short tube, dd, placed in the middle, and having an 

 iron wire soldered round it to stiffen it, and to serve as a 

 shoulder. 



e e Two eye-pieces, with glass in both, one at each emi, 

 and sliding into the tubes h and c. 



ff The balance level, hanging by a sort of staple g-, on 

 a point fixed upright on the middle of the bar h (shown ia 

 Fig. 3), which is fastened across the tube d. 



i i Two eye-pieces sliding into the ends of thie level ff, 

 and having a narrow slit horizontally across the middle, 

 'Aith a hair before each, shown by the dots h h. 



k An adjusting screw, which acts by drawing the piece ?«, 

 (which moves in a dove-tail slide,) in one end of the tube. 



n The key-hole through which the screw is turned. 



Fig. 4. An end view of the case and level, showing the 

 eye-pieces i and c, one within the other. 



XXfir. Description of a new Method of fearing Poultry to 

 Advantage. By Mrs. Hannah D'Oyley, of Sion Hill, 

 near Northallerton* . 



SIR, 



-L r,EG leave to communicate a most desirable method of 

 rearing poultry, which I have proveci by experience. The 

 oecononiy and facility with which it may be performed, 



* From Transactions of the Society for the Encouragement of Arts, Ma- 



iiufacturcs, and Commerce, for 1807. Tlie silver medal of the Society was 



voted to Mrs. D'Oyley for this communication. 



would. 



