Arizona republican., 1920-09-19
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Negotiations are in progress between l !ocal tractor distributors for the pur pose of staging a mammoth tractor demonstration during the week of the fair, November s to IA.
 The demonstration field will very likely be at or near the fair grounds so that the greatest number of people can view the work of the tractors
 Undoubtedly this tractor demonstra- tion will prove of intense interest tC the farmers and cotton men of the val ley, as many problems affecting the operation of tractors will be worked out at this demonstration.
 There is a wonderful future in the Salt River valley for the tractor. Per haps no place in the United States. of fers such an opportunity for the de- velpoment of the farm power machin- cry as does this valley The absence of hard. rocky formations in the valley greatly simplifies the work of the ma chins, and the fact that we have an unlimited growing season makes the tractor an asset to any plantation for every day, all the year round work.
 Those who are possessed of tractors have been able to carry on work in the heat of the summer-work that the average team of horses could not pos sibly stand up under. And many have also turned to advantage the various power transmitting devices found on
 
 requiring the power of an engine or motor.
 D. I. Thomas of the Montgomery Thomas Hart-Parr company, and A. c. Duimage of the Dulmage and Dunbar, Twin City tractor distributors, are working up the details of the demon stration and will shortly have the ar engagements completed
 Among coming events of interest to the tractor manufacturers and the farmers is the National Implement and Power Farming show, to be held at Peoria, Illinois. september 17-26. Here will undoubtedly be gathered the ex- hibits of practically every tractor man. ufacturer in the country, and some wonderful exhibitions of power farm ing will be seen.
 The National Tractor and Implement show of the West will be held in Los Angeles September 20-26. and arrange ments have been made there to stage one of the greatest shows ever seen in the tractor world. Tractor men from all over the West are making plans to attend this great show, and it is ex- pected that great good will be accom- plished in unifying the tractor inter ests as we'll as facts brought to light covering up-to-date developments in the industry
 At Columbus Ohio. February 6-12
 
 show, devoted to the exhibition of tractors alone. At the present writing, little information is available covering this show, but it is reported that the various manufacturers are taking very lively interest in the preparations and expect to stage a show of world wide interest.
 A very interesting feature of the construction of the manifoding in the Hart-Parr engine is the carburetor shunt- This device enables the engine. when idling, to take the gases through a long tube to the heated section sur rounded by the exhaust gases.
 This arrangement eliminates much of the tendency toward manifold load ing, and a smoothness of operation is secured when the throttle is opened suddenly.
 According to information obtained from Swedish manufacturers by Amer ican commercial attaches, who have reported to the department of com merce, tractors which will burn crude oil. instead of petrol or benzoI are in general demand throughout Europe.
 Austria, at the present time, .s using large numbers of Swedish tractors Gasoline, being very hard to obtain in European countries, has given way to crude oil, and tractors able to burn this fuel are being imported by nearly every European country.
 Delaware college. Wilmington, De1a- ware. has established a tractor school for the benefit of it's students. Recent ly a farmers day was inaugurated and farmers from all over the state are to assemble once a year at the university as the guests of the faculty, being
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