The First Book Library Series

A series of omnibus volumes published by Franklin Watts combining separately published nonfiction works.
Books in the The First Book Library series:
The First Book of Trees (1951)

An introduction to the science of trees.
The First Book of Bees (1952)

The story of our friends the bees and how they make honey.
The First Book of Prehistoric Animals (1954)

A primer on ancient animals.
The First Book of Gardening (1956)

A book on gardening for children.
The First Book Library: Baseball, Gardening, Photography (1958)

A collection of books on various topics for children with illustrations.
Virgina Kirkus
Et al
Et al
The First Book of Tropical Mammals (1958)

A brief survey of mammals that live in the tropics.