--- Start of Idrisi List message Folks: Is there a forestry professional among you who would be willing to review a forestry exercise for the UNITAR Forestry Workbook? One of the exercises is being substantially changed and I would like to pass it by a real forester before unleashing it on the world. The premise of the exercise is creating a simple timber harvest cost model involving getting timber to a road (using slope as friction) and then hauling it along a network to a mill (using road type as friction). I am seeking some advice on relative costs to use. For all you Idrisians, foresters and non-foresters alike, we expect the Forestry volume to be available on CD for use with Idrisi32 around the end of April. The Change and Time Series Analysis volume is already available. Thank you, Ms. Michele Fulk Asst. Director for Programs Clark Labs, Clark University 950 Main St., Worcester, MA 01610-1477 email: [EMAIL PROTECTED] phone: +1-508-849-2311 fax: +1-508-793-8842 --- End of Idrisi List message IDRISI-L is an unmoderated list. As a service to list users, please post a summary of useful responses to your questions. To post a message to IDRISI-L, send it to [EMAIL PROTECTED] To subscribe to the list, send an email from the address to be subscribed to [EMAIL PROTECTED] with "subscribe" (without quotes) as the first line of the message body. To unsubscribe, do the same, only with "unsubscribe" as the first line of the message body.