THE HUSBANDRY OF THE CANE 



119 



tractor and the caterpillar or track-la3dng tractor. An illustration of the 

 former type is shown on Plate XIII. At the other extreme is to be found 

 the animal-drawn implement still in general use in Cuba, Java, and the 

 Philippines, and in other localities occasionallj' where peculiarities of certain 

 fields may prohibit the use of the more economical power plants. Plate XII 

 shows a }-oke of oxen at work in Cuba in the preparation of land for planting 



Fig. 27 



The area of land ploughed by these devices in a given time varies both 

 with the nature of the soil and with the depth ploughed. Cable-drawn 

 steam ploughs operated at a depth of 14-16 inches will, in lands of normal 

 stiffness, take one hour to plough an acre, the area increasing as the 

 depth decreases. The motor-drawn paraffin tractors, ploughing only to a 

 depth of 4-6 inches, wiU, under similar conditions, plough an acre an hour. 

 At the other extreme is the ox-drawn Cuban plough which has a capacity of 

 only one acre in nine hours ploughed to a depth of not more than four inches. 



Fig. 28 



The Implements used. — Generally the implements used in cane culture 

 differ in no ways from those employed in other agricultural industries. 

 Some of these, together with t^-pes specialized for use with the sugar cane, are 

 described below. 



Ploughs. — The primitive type of plough which has come dow^n from very 

 early times still survives in use in Java, in the PhiHppines, and in Cuba, 

 in all of which countries, however, it is fast disappearing. 



