A Dictionary Of Exploration And Discovery

By O.B Gregory, Gregory, O. B.

A Dictionary Of Exploration And Discovery

By O.B Gregory, Gregory, O. B.

Dinosaurs

By O.B Gregory, Gregory, O. B.

A Brief Introduction To The Ancient Reptiles Known Only Through Fossils.

Bread

By O.B Gregory, Gregory, O. B.

Describes how wheat is grown, harvested, and ground into flour which is baked into loaves of bread. Includes questions and vocabulary.

Cocoa And Chocolate

By O.B Gregory, Gregory, O. B.

Describes the processes by which cocoa and chocolate are made from cocoa beans. Includes questions and a vocabulary list.

Cotton

By O.B Gregory, Gregory, Gregory, O. B., O. B.; Wrigley, Elsie [Illustrator]

Glass

By O.B Gregory, Gregory, O. B.

Describes how glass is made by heating sand with other materials in a furnace and molded, blown, or rolled into bottles, windows, and other things. Includes questions and vocabulary.

Milk

By O.B Gregory, Gregory, O. B.

Describes the operation of a dairy farm and the path milk travels from cow to bottle.

Oil

By O.B Gregory, Gregory, O. B.

Describes how petroleum is found in underground rocks, pumped out of the ground into tanks, transported to other countries in tankers, and refined into oil and gasoline. Includes questions and voca...

Rubber

By O.B Gregory, Gregory, O. B.

Relates How Rubber Trees Are Grown And Tapped For Latex, Which Is Processed Into Automobile Tires, Hot Water Bottles, Rubber Gloves, And Other Things. Includes Questions And Vocabulary.