SINCE the publication of the first Volume of this work, its scope has been greatly enlarged. It
is now made to include, not only Physics proper, but several kindred branches, and aims to …

Physico-mechanical experiments on various subjects: containing an account of several
surprizing phænomena touching light and electricity, producible on the attrition of bodies …

T HE Learned World is now al moft generally convinc'd, that inſtead of amufing themſelves
with Vain Hypothefes, which feem to differ. little from Romances, there's no other way of …

T HE Learned World is now aloft generally convinc'd, that inſtead of amufing themſelves with
Vain Hypo thefes, which feem to differ little from Rømances, there's no other way of …

An elementary treatment of the nature of an experiment is given in order to demonstrate the
various factors which must be considered in planning an experiment. Particular attention has …

IN preparing a Third Edition for the press, I have adhered to my original plan of publishing
these Lectures just as they were taken down by the short-hand writers. I have, however …

The course presented in this book, and in the List of Laboratory Experiments, which is
published in a separate volume, has grown out of the actual needs of the elementary work in …

There are changes taking place in the spirit and scope of physical philosophy at large;
scarcely less remarkable in their nature and influence than the discoveries in which they …

This book is a revision and an enlargement of the Elements of Applied Physics. There has
been a minor change in the name. This change has not, however, altered either the purpose …

Among the most recent of educational problems, and perhaps the most widely discussed,~ s
that classroom procedure known as instruction by mechanical devices. Since the World War …