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SMITHSONIAN STUDIES IN HISTORY AND TECHNOLOGY · NUMBER 17
Agricultural Implements and Machines
in the Collection of the
National Museum of History and Technology
by
JOHN T. SCHLEBECKER
SMITHSONIAN INSTITUTION PRESS
City of Washington
1972
SERIAL PUBLICATIONS OF THE SMITHSONIAN INSTITUTION
The emphasis upon publications as a means of diffusing knowledge was expressedby the first Secretary of the Smithsonian Institution. In his formal plan for the Institution,Joseph Henry articulated a program that included the following statement:"It is proposed to publish a series of reports, giving an account of the new discoveriesin science, and of the changes made from year to year in all branches of knowledge."This keynote of basic research has been adhered to over the years in the issuanceof thousands of titles in serial publications under the Smithsonian imprint, commencingwith Smithsonian Contributions to Knowledge in 1848 and continuing withthe following active series:
Smithsonian Annals of Flight
Smithsonian Contributions to Anthropology
Smithsonian Contributions to Astrophysics
Smithsonian Contributions to Botany
Smithsonian Contributions to the Earth Sciences
Smithsonian Contributions to Paleobiology
Smithsonian Contributions to Zoology
Smithsonian Studies in History and Technology
In these series, the Institution publishes original articles and monographs dealingwith the research and collections of its several museums and offices and of professionalcolleagues at other institutions of learning. These papers report newly acquired facts,synoptic interpretations of data, or original theory in specialized fields. These publicationsare distributed by mailing lists to libraries, laboratories, and other interestedinstitutions and specialists throughout the world. Individual copies may be obtainedfrom the Smithsonian Institution Press as long as stocks are available.
S. Dillon Ripley
Secretary
Smithsonian Institution
For sale by the Superintendent of Documents, U.S. Government Printing Office
Washington, D.C. 20402—Price 70 cents
Stock Number 4700-0209