'Farm Tractors: 1950-1975' has been published by the American Society of Agricultural Engineers as a sequel to its best seller, 'The Agricultural Tractor: 1855-1950.' It contains over 400 photos.
This new book undoubtedly will be as popular as the volume which preceded it. Demand for the 1855-1950 book is shown in its sales of nearly 50,000 in the past six years.
Lester Larsen, the new book's author, has excellent credentials- he headed the famous Nebraska Tractor Testing Laboratory from 1946 to 1975. He was assisted by over 100 other experts including Carlton Zink, who headed the testing lab from 1930 to 1941.
You can not only see pictures of important models of U.S. and foreign tractors of the period, you can also read specifications. You can follow the major changes in technology and design in the 25 years covered- years of great change and growth.
Whatever your interest in tractors may be, you'll find ample information. Every collector should own a copy.
The book says, for example, that Allis-Chalmers was one of the first makers to try pneumatic tires. It shows Albert Schroeder, a Wisconsin farmer who aided in experiments, on his Allis-Chalmers model U. Firestone Tire and Rubber Co. also assisted.
The differences in terms describing horsepower are cleared up; each term, such as 'Indicated horsepower' or 'Maximum intermittent brake horsepower' is defined in clear language.
It recalls that the first seat for tractors were pressed steel pans, and in the early days 'If a farmer placed a pad on the seat or raised an umbrella to protect himself from the sun, he generally was viewed as a sissy.'
Others items among many: John Deere introduced its 'live' power take-off in 1952-International Harvester added 'traction control' to the 2-point hitch on its new line of tractors in 1956 . . . The first Case tractor to be equipped with a dry type air cleaner was the 1030 Diesel Comfort King, introduced in 1966.
There are many references to the Nebraska tests. Just about any brand name you can think of is featured. Massey-Ferguson, Oliver, Steiger and Ford are among the names. You'll probably find a picture that can be a lot of help. To order, mail $15.70 to Stemgas Publishing Company, Box 328, Lancaster, PA 17603.