Washington's adulthood as a city is a relatively recent phenomenon, dating from the period between the World Wars. Images of its youth and adolescence, as seen by commercial and government photographers, appear on these pages - testimony of everyday life in the small town that the nation's capital was. CAPTION: Picture 1, Funeral of President McKinley, 1901, stereograph. Perfected in the early 1850s, the stereograph and stereoptican viewer made up the first visual mass meduim, a source of information and entertainment not unlike televison today. A stereograph was a card on which two identical images were printed side by side. The stereoptican viewer took advantage of the tendency of the two eyes to see slightly different images when directed to a single object. When seen through the stereoptican lens, the combination of the two images in the brain gives relief and perspective - a three dimensional view. Library of Congress; Picture 2, The Capitol -

The man in front is probably one of the Piccirilli brothers, carvers of marble under the direction of Daniel Chester French, sculptor. This picture was recently reproduced as a postcard by the National Archives from the slightly damaged original glass plate negative. National Archives; Picture 8, U.S.Capitol Police, 1854, Architect of the Capitol; Picture 9, "Tom Mix, hero of the movies, snapped today on the Ellipse where he entertained the boys of the city with his trained horse, "Tony.'" 1925, French Collection. Library of Congress; Picture 10, "Snapped at the National Ballet Training Caneo in the Virginia Hills," 1924, French Collection. Library of Congress; Picture 11, "Danridge Epps of Natural Bridge, Va., who brought a six pound possum to the President [Coolidge] which was presented today. Snaped [sic] at the White House." One of many informal portraits of presidential callers, the Epps picture was captioned by "The Mad Snaper," as that writer is known today to denizens of the Library of Congress. 1924. French Collection. Library of Congress