Published Annually by Ames Forestry Club.

SOME people are inclined to think of plastics as synthetic materials that can be molded into any shape and then hardened. In fact, that is about the way Webster defines a plastic. In the case of wood, however, the term plastic is frequently used to indicate changes made either by impregnating resins, by compression, or by remolding component parts after separation. Such separation can ·be mechanical or chemical. This paper outlines some of these procedures.

A forester stands at a gate between two worlds. Pa!is through this gate in one direction and you come into the intricate world of human technology; pass through the opposite way and you enter the perfection of God's natural world.

Any developing frontier area is an area of unusual opportunity. It has been popular in recent years to emphasize frontiers of the mind. And . certainly there are many frontiers of the mind. But there still remain areas that are physical and economic frontiers. And Alaska is one of them. In a unique way, it ·is a forestry frontier.

AERIAL PHOTOGRAPHY can bring the forest to your desk. Through aerial photos owners, managers, and field men now visualize the entire forest. Management plans, long dependent upon limited data from small field plots, can be amplified and checked under controlled office conditions through measurements made on the photos. Timber sales, access roads, recreational facilities, and even game management areas are planned through photo study. All forest mapping and most forest surveys are based on aerial photos. This wide acceptance by foresters of the aerial photo as a working tool parallels the development of photogrammetry and its use in many other technical and professional fields. Let us see why and how the aerial photo can help the modern forester.