THE CUBA RE J' IE TV 



15 



A Disc Harrow 



germinate; it is cheapest then. When the cane is too tall to pass under the center of 

 the disc harrow, begin discing between the rows. As the cane fills out, remove an end 

 disc from each gang of the harrow; the machine will then be smaller. As the cane 

 ■closes in the harrows will have to be abandoned because of the injury to the crop 

 from the implement and the mules. Well-fed mules need not be muzzled for this work. 

 The disc harrow should do the major part of all cultivation. Small mules are 

 used for this work. Their labor is valued at fifty cents per day at Los Canos, and 

 the present cost of such man labor is ten cents per hour. Boys over fifteen years of 

 age also do well on disc harrows, and it is a good way to train them in as drivers. 



Disc Harrow a Sturdy Machine 



These machines will roll over trash which may be encountered. There will be 

 no tangling up in it, as in the case of a toothed tool. Lost cane cut down aftet a 

 fire will not prevent the disc from doing good work. This type of cultivator will 

 stand much abuse. It will roll over small logs, stones and stumps, and dodge those 

 which it cannot encounter. If it hangs up on a stump no harm will result. The 

 rider can simply get off and lift one end of the machine clear, and resume work. 

 If the compression grease cups which come with this type of implement are always 

 screwed down tight after being used to inject grease into the bearings, they will 

 not be lost off. In this manner the lubrication will remain a simple problem, it will 

 give little trouble, and the implement will be long lived. If this detail is not watched, 

 much trouble and expense will follow. Each driver of any kind of implement 

 should be required to own his own monkey wrench. The wrench must be his own 

 property, as in this way only will he care for small tools. Repair parts, bolts, 

 whips, files, grease, etc., must also be kept accessible. The costs for all operations 

 of the disc harrow are one and one-third man-hours and two and two-thirds mule-hours 

 per acre. 



