Millicent Ellis Selsam - Botany - 1949 - 62 pages
Directions for growing plants from roots, stems, leaves, and seeds of common potatoes, beans, and house plants. Tells how a seed grows and presents simple gardening experiments.
Millicent Ellis Selsam - Bacteria - 1953 - 95 pages
Presents basic information on the microbes commonly found on foodstuffs--bacteria, molds, and yeast--and discusses ways man has found of discouraging the growth of undesirable ...