69. Buggy Rake, 1840. USNM 175393; 1947. The buggy rake harvested grain after it had been cut with a cradle. The rake has handles and a wheel, like a wheelbarrow, with long wooden tines in front to scoop up the grain. When the binder stepped on a bar at the back of the buggy the tines would move up and allow the grain to slide back against the uprights in a convenient position for binding. Although it undoubtedly reduced the physical labor of binding, this rake would not have been very efficient and would have allowed the reaper to get far ahead of the binder. Gift of F. B. Day, Owosso, Michigan. 70. Model of Plow, about 1885. USNM 179841; 1949. The model has a share, standard, and moldboard of metal with a gauge wheel on the beam. The beam pivots on the standard, allowing adjustments of the angle of draft. The end of the beam is fastened to a brace which extends to the back of the moldboard. The share and point are in one piece; and the moldboard is one piece. The model resembles the plows of James Oliver, which by 1885 had been widely known and were quite possibly copied. Donor unknown. 71. Diorama of Tropical Banana Plantation, late 19th century. USNM 186623; 1950. The diorama shows bananas being harvested and trees being cut. The banana bunches get to the railroad cars on burros. At the bottom, bananas are shown in various stages of growth and ripening. Gift of United Fruit Company, Washington, D. C. 72. Diorama of Tropical Coffee Plantation, late 19th century. USNM 186553; 1950. The diorama shows coffee berries being dried in the sun and in the shade in preparation for marketing the coffee. At the bottom, various stages of growth and ripening of the coffee berries are depicted. Gift of The Great Atlantic and Pacific Tea Company (A & P), New York, New York. 73. Food-Slicing Machine, mid 19th century. USNM 188878; 1950. Cutting knives, set in helix in a wooden axle, move the meat through the box, cutting it finer and finer. Gift of George Murphy, Washington, D. C. 74. Fanning Mill, about 1860. USNM 192872; 1951. A hand-crank operated the winnowing mill for separating grain from chaff and beans from hulls. A four-blade, wooden fan, shaped like a paddle wheel, blows a draft below oscillating screens. The chaff is blown off from the threshed grain, and the grain or beans fall from the screens into the path of the draft. The screens catch any straw left after threshing. Gift of Arden Wilson, Harrisville, West Virginia. [Illustration: Figure 8.--Two-row corn planter, about 1854. (Catalog No. 75.)]