In 1928 a fine and extensive stand of sugar pine was saved by the initiative of Mr. Roosevelt who brought to public attention through the New York Times the need to acquire privately owned lands Within Yosemite National Park. While modest about his contribution, Roosevelt relates the story of the acquisition to point up the need for a continuing policy of buying up private holdings in Federal national parks. However, there is also the subtler lesson concerning the need for gentle pressure on media and those in high places. The author then reviews highlight cases from his long experience in the field of conservation -- from the tragic damming of San Francisco's Hetch Hetchy Valley in the early 1900's to Storm King. Along the way the reader may trace the development of governmental involvement in conservation through its many agencies -- some inadequate, all at odds, but reflecting a movement away from unlimited consumption of natural resources. Mr. Roosevelt is no romanticist -- he favors access (discreetly limited), integration and ""use"" of wilderness areas for aesthetic and recreation purposes. But he detests despoliation and ""hideous hot-dog stands."" Not all his tenets will be accepted out of hand, but his experience, thoughtful perspectives and disarmingly courtly exposition contribute to a valuable staple for the fighting conservationist.