2. Korean Sketch of Threshing in the Late 18th Century. USNM 19048; 1887. Korean farmers threshing rice. By Han Chin U. Gift of G. Goward, Washington, D. C. 3. Korean Fishing Scene of the Late 18th Century. USNM 19048; 1887. Koreans using a fish trap. By Han Chin U. Gift of G. Goward, Washington, D. C. 4. Scene of Korean Farmers Chopping Tobacco in 18th Century. USNM 19048; 1887. Korean farmers chopping tobacco after it has been cured. By Han Chin U. Gift of G. Goward, Washington, D. C. 5. Scene of Korean Farmers Working on Farm Buildings in Late 18th Century. USNM 19048; 1887. Korean farmers doing carpentry work, including roof repair. By Han Chin U. Gift of G. Goward, Washington, D. C. 6. Scene of a Korean Blacksmith at Work in Late 18th Century. USNM 19048; 1887. A Korean blacksmith working at his forge and anvil. By Han Chin U. Gift of G. Goward, Washington, D. C. 7. A Korean Farrier Shoeing a Horse in the Late 18th Century. USNM 19048; 1887. By Han Chin U. Gift of G. Goward, Washington, D. C. 8. Centrifugal Cream Separator, 1868. USNM 23744; 1890. The first centrifugal cream separator used commercially in the United States. The Deerfoot Farm at Southborough, Massachusetts, used this machine, patented by D. M. Weston of Boston. Gift of Deerfoot Farm Company, Southborough, Massachusetts. 9. Model of Blount's Daisy Plow, 1890. USNM 23873; 1891. This model of a one-horse plow shows Blount's Daisy steel plow as pictured in the catalog of Henry F. Blount. Gift of Henry F. Blount, Evansville, Indiana. [Illustration: Figure 1.--Views of Old Colony Strong Plow, about 1732. (Catalog No. 10.)] 10. Old Colony Strong Plow, 1732. USNM 34769; 1899. In 1732 Peter Hardy of Raymond, New Hampshire, made this plow for Henry Lamprey of Kensington, New Hampshire. Gift of J. P. Lamprey, Kensington, New Hampshire. 11. Winnowing Basket, 1799. USNM 37441; 1901. A winnowing basket, or pan, made of willow woven over wide sprints; elliptical in shape, with a frame of thick rods. Noah Rogers bought this pan in New York in 1799 or 1800. Gift of Frank A. Brown, Savage, Maryland. 12. Model of Flail Threshing Machine, 19th Century. USNM 46812; 1906. The frame of this wooden model is 7-1/2 inches high and 5 by 6 inches, rectangular. The levers, 14 inches long, project from the frame and strike the floor much as a flail would. Pins set in the shaft of a hand crank act as cams, raising the flails which then fall to the ground by gravity. Gift of United States Department of the Interior. 13. Model of Gallic Grain Header, about A.D. 70. USNM 46812; 1906. A wooden box on wheels, 12 by 5 inches, has metal teeth set at the front end. Shafts extend to the rear, where an ox is yoked. The forward movement of the cart causes the grain to lodge against the teeth, which pulled the heads off. The grain then fell back into the box. Gift of United States Department of the Interior.