37 books • 15 series
Helen Keller (Life Stories, #6)
Chemistry in Action (New Encyclopedia of Science)
The Sea, The (My First Encyclopaedia S.)
The Sea (Young World S.) (First Facts S.) (First Facts (Houghton Mifflin))
The Human Cycle (Natural Cycles)
The Food Cycle (Natural Cycles)
Famous Scientists (Famous People, #16)
Favorite Recipes of the South
The Plant Cycle (Natural Cycles, #2)
The Mississippi (Rivers of the World)
Louis Pasteur (Pioneers of Science S.)
Thomas Edison (Pioneers of Science S.) (Pioneers of Science)
Guglielmo Marconi (Pioneers of Science S.) (Pioneers of Science)