PROF HARNWELL'S book is an interesting, and on the whole successful, combination of the classico-theoretical and modern-practical treatments of electromagnetism. We have, for example, in Chapter i the ...
THROUGH the courtesy of the Editor I am able to reply to the letter of Mr. Llewelyn B. Atkinson, in which he challenges two of my criticisms in the review of “The Principles of Magnetism and ...