
Check this out. This is from a wonderful 1924 book called "A Popular History of American Invention" by Waldemar Kaempffert. This book has taken up permanent residence in the bathroom (TMI). Here's one of my favorite pictures in the book. It's from a chapter titled "FARMING BY MACHINE." The caption says:
"From 1841, when D. A. Church built what was probably the last of the early harvester-threshers, until about 1881, harvesting and threshing were regarded as separate and distinct operations. But when California became the greatest wheat-raising State, labor sufficient to harvest, haul, and thresh wheat in the old way could not be secured. Combined harvesters and threshers ("combines") were built. These were drawn by great teams of horses, as here shown. Gasoline-engines were used to supply the power for the machinery, the horses being used only for hauling. nowadays tractors take the place of horses."





