THE thirty-six object-lessons contained in the present volume form the third part of a scheme of lessons drawn up by the author at the request of the Liverpool School Board. They are designed for ...

Poems, stories, and science activities in these colorful 64-page books help your curious young scientist explore the science in everyday life. Two volumes with over 600 science activities helps ...

THESE books deal with elementary physics. The first is intended for pupils to read in class, lesson by lesson, after they have attended an explanatory and experimental demonstration from the teacher ...