[Текст] : the principles and general methods of operation in the United States / R.C. Bryant. - Second edition thoroughly revised and resent / Bryant. - New York ; London : John Wiley & Sons, Inc., 1923%. - 556 с. : ill. - 7000 экз. - 90.00 р.
Библиогр: p. 455-468%Index 531-556
Аннотация: The marked development, during during the past decde, in power
logging machinery and methods has made it desirable to revise the first edition. A chapter has also been added on the use of crawler tractors in
logging work because theirb rapid adaptation to the logger's needs indicates the extensive adoption of this form of equipment. This chapter hs been prepared by A. Koroleff, a Russina forest engineer, who has spent much time in studying the use of this kind of equipment on
logging operations in the United States. The subject matter has been rearranged, in part, to better meet the needs of the teacher and student and much of the text has been rewritten
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