HARPER'S PRACTICAL BOOKS
Reading edition
HARPER'S BOOK FOR YOUNG GARDENERS
HARPER'S INDOOR BOOKS FOR BOYS
HARPER'S OUTDOOR BOOK FOR BOYS
HARPER'S CAMPING AND SCOUTING
HARPER'S BOATING BOOK FOR BOYS
HARPER'S ELECTRICITY BOOK FOR BOYS
HARPER'S BOOK FOR YOUNG NATURALISTS
HARPER'S HOW TO UNDERSTAND ELECTRICAL WORK
HARPER'S MACHINERY BOOK FOR BOYS
HARPER'S HANDY-BOOK FOR GIRLS
THE STORY OF OUR GREAT INVENTIONS
MOTOR-BOATING FOR BOYS
Each Volume Fully Illustrated. Crown 8vo