Book 1
Animal Babies
Carl Sommer
Book 2
Animals of the Arctic
Carl Sommer
Book 3
Animals of the Desert
Carl Sommer
Book 4
Animals of the Jungle
Carl Sommer
Book 6
Camping Adventure
Carl Sommer
Book 7
Farming: Past and Present
Carl Sommer
Book 8
Fishing for Fun
Carl Sommer
Book 9
Growing Food
Carl Sommer
Book 10
Large Land Animals
Carl Sommer
Book 11
Large Sea Animals
Carl Sommer