FUTURE OF THE TRACTION ENGINE 307 



it. Its unrestricted development as an aid to mankind de- 

 pends upon this attitude, which in the past has been neutral, 

 even hostile. In the future the embarrassments which have been 

 imposed must be removed, and constructive measures must 

 be taken to widen the tractor's sphere of usefulness, or else 

 the great opportunity which is offered by this cheap, convenient, 

 and efficient servant of humanity will fall short of a full 

 realization. 



