'Cleaning Gras Seed, San Joaquin Valley, California', USA, 1855.
© Science Museum / Science & Society Picture Library
Engraving after Captain Seth Eastman, US Army, from a sketch by E M Kern, showing Native American women using woven sieves or dishes to winnow gras seed, allowing the wind to blow the lighter chaff away, leaving the seed. The Native American population of the Americas was drastically reduced after the arrival of the Europeans due to war, disease, forced removal and relocation, and the destruction of traditional ways of life. Illustration from 'Information respecting the history, condition and prospects of the Indian tribes of the United States. Part 5' by Henry Rowe Schoolcraft (1793-1864), published in Philadelphia in 1855.