ALTHOUGH the displacement of horses by tractors has been taking place on farms for only 20 years in any large amounts, tractor power is finding it increasingly harder to displace animal power. Mr. Sperry believes this condition is due to two factors:
Tractors cost too much for the operators of smaller farms.
Evidently there is still something lacking in the ability of the tractor to do varied farm work as suitably as horses.
To overcome these difficulties, at least in part, Mr. Sperry suggests the following as the most important requirements for tractors of the future:
Provision for quickly attaching or removing mounted farm implements.
Greater ease in controls for manipulating these implements.
Operator's comfort for long hours on the tractor.
Tractor sizes suited to the small acre farm and its limited income.
Engine combustion-chamber shape and vaporizing equipment to be studied intensively so that we provide the maximum in power per gallon of fuel, since it is evident that premium fuels are not going to be popular with farmers.