50 ONION-RAISING. 



dred bushels of carrots are raised per acre in addition to the 

 usual crop of onions. More manure is required for the two 

 crops than for the onions alone. 



The machine used for sowing in drills where carrots are 

 raised with the crop, has two boxes attached to the axle at 

 equidistance from the wheels : there are three or four holes 

 in the axle that communicate with the seed in the boxes, 

 and as these holes pass under the boxes they are filled with 

 seed, and, as they turn, the seed are dropped into the earth. 

 Screws are sunk into the holes, which can be sunk more or 

 less at pleasure, and the quantity of seed which the holes 

 will contain is thus graded. 



The machine should first be tested and so regulated that 

 on a barn-floor it will drop from eleven to twelve seed from 

 each hole. When so regulated, on using in the field it will 

 drop but from seven to twelve, owing to the more uneven 

 motion. 



This, like all sowing-machines, — and the same maybe said 

 of the scuffle-hoe and wheel-hoe, — is pushed along before 

 the operator. 



ANALYSIS OF THE ONION. 

 AN ANALYSIS, under the direction of Professor Goessraan 

 '*■ of the Massachusetts Agricultural College, gives the fol- 

 lowing as the principal constituents of the onion : — 

 Air-dry onions without leaves were found to consist of — 



