Inventions of Martha Coston

by Holly Cefrey

Published 1 January 2003

Inventions of Amanda Jones

by Holly Cefrey

Published 1 January 2003

Inventions of Eli Whitney

by Holly Cefrey

Published 1 November 2002
Provides a biographical sketch of Eli Whitney and a description of his most famous invention, the cotton gin, which made the harvesting of cotton easier.