Peter Hamilton, R.P.F. Program Coordinator, Small-Scale Operations Forest Engineering Research Institute of Canada (FERIC) 580 Boul. St-Jean Pointe Claire, Que. H9R 3J9, Canada e-mail: peter-h@mtl.feric.ca Dear Peter You may be interested in some comparitive data on the productivity and use of these yarders in southern Australia. There has been some research here on their productivity under different terrain and piece size conditions, and if you are interested, I could provide some contacts within the various forest services and research organisations that may be able to assist. Ross Peacock Principal Forest Ecologist (Flora) Sustainable Forest Management Team State Forests of NSW Locked Bag 23 Pennant Hills NSW 2120 AUSTRALIA e-mail: rossp@ironbark.forest.nsw.gov.au
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