SLEDS AND SLED-IIAULING 183 
BIBLIOGRAPHICAL NOTE TO CHAPTER XI 
Brown, Simnions: Alochaniral Log Haulers and their Development. 
Report of Third Annual Conference of the Woods Dept., Berlin Mills 
Co. et al, Berlin, New Hampshire, Nov., 1915., pp. 22 to 26. 
Innes, J. S. : Tractor Haulage. Canada Lumberman and Woodworker, 
July 15, 1922. pp. 45 and 46. 
SissGN, Stanley H.: Use of Tractors in Winter Log-hauling. Empire 
State Forest Products Asso., Bui. No. 12, Albany, N. Y., Dec, 1921, 
pp. 26-29. 
