A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
What to observe and how to report it
Also available in digital form on the Library of Congress Web site.
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
What to observe and how to report it
Also available in digital form on the Library of Congress Web site.
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
McClellan reconnoitering the Turnpike to Richmond from the Peach Orcha...
Signed lower right: Alf R Waud. Title inscribed below image. Inscribed upper right: Sketch 34-. Pencil sketches of heads of two men on verso. Gift, J.P. Morgan, 1919 (DLC/PP-1919:R1.2.407) Reference print avail... More
Scouting in the Blue Ridge, Library of Congress drawings collection
Picryl description: Public domain book scan - American Civil War, free to use, no copyright restrictions image.
5 Perkins kites holding up a man at the Harvard Aviation Field, Sept. ...
Photograph shows man in air attached to man-lifting kites at Harvard Aviation Field, Quincy, Massachusetts; kites were developed by Samuel F. Perkins for military reconnaissance. No. 1607AS. Forms part of Erne... More
What to observe and how to report it
Also available in digital form on the Library of Congress Web site.
What to observe and how to report it
Also available in digital form on the Library of Congress Web site.
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
What to observe and how to report it
Also available in digital form on the Library of Congress Web site.
What to observe and how to report it
Also available in digital form on the Library of Congress Web site.
What to observe and how to report it
Also available in digital form on the Library of Congress Web site.
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
What to observe and how to report it
Also available in digital form on the Library of Congress Web site.
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
What to observe and how to report it
Also available in digital form on the Library of Congress Web site.
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
McClellan reconnoitering the Turnpike to Richmond from the Peach Orcha...
Signed lower right: Alf R Waud. Title inscribed below image. Inscribed upper right: Sketch 34-. Pencil sketches of heads of two men on verso. Gift, J.P. Morgan, 1919 (DLC/PP-1919:R1.2.407) Reference print avail... More
Scouting in the Blue Ridge, Library of Congress drawings collection
Picryl description: Public domain book scan - American Civil War, free to use, no copyright restrictions image.
ZR-1 Shenandoah, gelatin silver print
Photograph shows an interior view of the USS Shenandoah under construction at the Naval Air Station, Lakehurst, New Jersey; shows an extensive interior frame of girders. Forms part of: National Photo Company C... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
What to observe and how to report it
Also available in digital form on the Library of Congress Web site.
What to observe and how to report it
Also available in digital form on the Library of Congress Web site.
What to observe and how to report it
Also available in digital form on the Library of Congress Web site.
What to observe and how to report it
Also available in digital form on the Library of Congress Web site.
What to observe and how to report it
Also available in digital form on the Library of Congress Web site.
What to observe and how to report it
Also available in digital form on the Library of Congress Web site.
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
What to observe and how to report it
Also available in digital form on the Library of Congress Web site.
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
Military reconnaissance of Virginia /
Shows Fairfax County and parts of Loudoun and Prince William counties, Virginia. Also shows fortifications in the environs of Washington and names of some residents. Relief shown by hachures. Depths shown by so... More
Map of a reconnaissance of the Black Hills, July and August, 1874, wit...
Shows exploration routes and dates. Relief shown by hachures and spot heights. LC Civil War maps (2nd ed.), S184 Available also through the Library of Congress Web site as a raster image. Includes notes indicat... More
Military reconnaissance in the vicinity of Gauley Bridge, Department o...
Relief shown by hachures. Shows Union headquarters, towns, roads, houses, names of residents, drainage. This item is in the Map Collection of the Library of Virginia; please contact the Library's Archives Resea... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
What to observe and how to report it
Also available in digital form on the Library of Congress Web site.
What to observe and how to report it
Also available in digital form on the Library of Congress Web site.
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
What to observe and how to report it
Also available in digital form on the Library of Congress Web site.
What to observe and how to report it
Also available in digital form on the Library of Congress Web site.
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
What to observe and how to report it
Also available in digital form on the Library of Congress Web site.
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
What to observe and how to report it
Also available in digital form on the Library of Congress Web site.
What to observe and how to report it
Also available in digital form on the Library of Congress Web site.
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
What to observe and how to report it
Also available in digital form on the Library of Congress Web site.
What to observe and how to report it
Also available in digital form on the Library of Congress Web site.
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
What to observe and how to report it
Also available in digital form on the Library of Congress Web site.
What to observe and how to report it
Also available in digital form on the Library of Congress Web site.
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
What to observe and how to report it
Also available in digital form on the Library of Congress Web site.
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More
A theoretical basis for methods of search and screening
Preface by B.O. Koopman. Title on half-title page: Summary technical report of the National Defense Research Committee. "Manuscript and illustrations for this volume were prepared for publication by the Summary... More