February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index

ANNOTATION: In Discovering Lewis and Clark from the Air, aerial photographer Jim Wark and Lewis and Clark scholar Joseph A. Mussulman offer a fascinating new perspective on the Corps' historic journey. From Monticello in the east to Fort Clatsop on the Pacific coast, the wild continent the expedition crossed is revealed anew in breathtaking full-color photographs. Well-researched text accompanies each photo, including quotes from the explorers' journals. The view from above provides new information about the Corps' experience and stirs fresh wonder at their achievement.