STEAM CULTIVATION. 



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engines are worked 

 on opposite head 

 lands, and each alter- 

 nately draws the 

 implement towards 

 itself, the engine not 

 in work paying out 

 the rope while mov- 

 ing forward into posi- 

 tion for the return 

 journey. Any kind 

 of implement may be 

 used. 



The advantages of 

 this double-engine 

 system are the 

 short length of the 

 rope required, and 

 consequent economy 

 of power, the facility 

 with which the 

 machine is set to 

 work and taken up, 

 and the small amount 

 of wear and tear, due 

 to the simplicity of 

 the tackle. Its dis- 

 advantages are its 

 first cost, and the 

 difficulty of moving 

 the engines on very 

 soft or wet land. The 

 last difficulty has 

 been,however, almost 

 entirely removed by 

 increasing the dia- 

 meter of the driving 

 wheels. 



For large farms 

 and for letting for 

 hire this system is 

 the best, and has 

 proved itself capable 



