Forestry students from Iowa State College have studied at first hand the ponderosa pine stands of eastern Oregon on several occasions in recent years and again in 1939 when the summer camp was located in the heart of the Malheur National Forest. The students of the 1939 summer camp, under the leadership o£ Professor MacDonald and with the aid of members o£ the Forest Service, gave special attention to a recently developed light cutting procedure known as the maturity selection method of cutting in Ponderosa Pine and the various silvicultural and economic factors involved in its application. For this reason, most of the subject matter of this article will be familiar to the personnel o£ the 1939 summer camp. The preparation of this article revives in my own mind the memories of a most pleasant and profitable ten days spent with Professor MacDonald, Professor Julander and an unusually alert, well-informed group of young foresters. The readiness with which these forestry students learned new field techniques and the searching questions they frequently asked about them convinced me of the adequacy of their professional training.