37-41	March 1955 Article Hydrazine: The stuff that does almost everything By Charles Lester Walker SEE ALSO: Fuel; Rockets (Aeronautics); Tuberculosis PDF IMAGES
69-74	July 1954 Article The wonderful climate machine By Charles Lester Walker PDF IMAGES
28-35	May 1953 Article Tomorrow's helicopters By Charles Lester Walker SEE ALSO: Forecasting; Helicopters PDF IMAGES
71-76	February 1953 Article Map the world By Charles Lester Walker SEE ALSO: Aeronautical charts; Cartography; Latin America; Road maps; Surveys PDF IMAGES
37-45	June 1951 Article So they're re-doing the post office By Charles Lester Walker SEE ALSO: Civil service reform; Evaluation; Postal service PDF IMAGES
29-38	July 1950 Article What we know about drinking By Charles Lester Walker SEE ALSO: Alcohol; Alcoholics Anonymous; Alcoholism; Physiological effect; Treatment PDF IMAGES
63-70	January 1950 Article The man who makes weather By Charles Lester Walker SEE ALSO: Contributions in weather control; Meteorologists; Schaefer, Vincent J.; Weather control PDF IMAGES
39-47	June 1949 Article What's in the deep freeze? By Charles Lester Walker PDF IMAGES
55-60	January 1949 Article A million unknown diabetics By Charles Lester Walker PDF IMAGES
56-62	July 1948 Article Look at this, Mr. Gutenberg By Charles Lester Walker SEE ALSO: Newspaper layout and typography; Printing industry; Technological innovations PDF IMAGES
97-104	February 1948 Article Too many people By Charles Lester Walker SEE ALSO: Food supply; Overpopulation PDF IMAGES
547-555	June 1947 Article Where to find buried treasure By Charles Lester Walker SEE ALSO: Archival resources; Government policy; Treasure-trove; United States. Dept. of Treasury PDF IMAGES
329-336	October 1946 Article Secrets by the thousands By Charles Lester Walker SEE ALSO: Discoveries in science; Official secrets; Secret service PDF IMAGES
162-169	August 1946 Article China's master spy By Charles Lester Walker SEE ALSO: Career in Chinese secret service; Intelligence service; Secret service; Li, Tai PDF IMAGES
238-246	March 1946 Article The China legend By Charles Lester Walker SEE ALSO: Foreign public opinion, American PDF IMAGES
458-463	November 1945 Article Backdrop for a crisis By Charles Lester Walker SEE ALSO: Walker, Charles Lester; Civil War, 1945-1949; Journeys—China—Chungking PDF IMAGES
374-384	March 1945 Article How we planned the invasion of Europe By Charles Lester Walker SEE ALSO: Logistics; Operation Overlord PDF IMAGES
371-378	September 1944 Article War maps: Techniques and secrecy By Charles Lester Walker SEE ALSO: Cartography PDF IMAGES
254-262	August 1944 Article How the war maps are made By Charles Lester Walker SEE ALSO: Cartography PDF IMAGES
246-252	February 1944 Article Preparation for invasion By Charles Lester Walker SEE ALSO: Africa, North; Campaigns; Logistics; Operational readiness PDF IMAGES
517-524	November 1943 Article We model our fighting ships By Charles Lester Walker SEE ALSO: Models; Testing; Trials of vessels; United States. Navy; Warships PDF IMAGES
170-176	July 1943 Article The Army teaches the trades By Charles Lester Walker SEE ALSO: Military education; Petersburg; Vocational education PDF IMAGES
25-31	June 1943 Article We train our armored force By Charles Lester Walker SEE ALSO: Armored troops; Drill and tactics; Training of PDF IMAGES
473-478	April 1943 Article Arthritis—the unseen enemy By Charles Lester Walker SEE ALSO: Rheumatoid arthritis; Treatment PDF IMAGES
608-614	November 1942 Article Don't forget the dirigible! By Charles Lester Walker SEE ALSO: Aeronautics, Military; Airships PDF IMAGES
235-244	August 1942 Article Civilian defense—there she stands By Charles Lester Walker SEE ALSO: Civil defense; United States. Office of Civilian Defense; War work PDF IMAGES
399-405	March 1942 Article The fire front: Our defense against incendiary bombs By Charles Lester Walker SEE ALSO: Aerial operations; Bombardment; Bombardment, 1940-1941; Civil defense; Forecasting PDF IMAGES