RADIOACTIVE TRANSFORMATIONS. By Ernest Rutherford, D.Sc., LL.D., F.R.S., Macdonald Professor of Physics, McGill University. (Second printing.)
EXPERIMENTAL AND THEORETICAL APPLICATIONS OF THERMODYNAMICS TO CHEMISTRY. By Dr. Walter Nernst, Professor and Director of the Institute of Physical Chemistry in the University of Berlin.
PROBLEMS OF GENETICS. By William Bateson, M.A., F.R.S., Director of the John Innes Horticultural Institution, Merton Park, Surrey, England. (Second printing.)
STELLAR MOTIONS. With Special Reference to Motions Determined by Means of the Spectrograph. By William Wallace Campbell, Sc.D., LL.D., Director of the Lick Observatory, University of California. (Second printing.)
THEORIES OF SOLUTIONS. By Svante Arrhenius, Ph.D., Sc.D., M.D., Director of the Physico-Chemical Department of the Nobel Institute, Stockholm, Sweden. (Third printing.)
IRRITABILITY. A Physiological Analysis of the General Effect of Stimuli in Living Substances. By Max Verworn, M.D., Ph.D., Professor at Bonn Physiological Institute. (Second printing.)
PROBLEMS OF AMERICAN GEOLOGY. By William North Rice, Frank D. Adams, Arthur P. Coleman, Charles D. Walcott, Waldemar Lindgren, Frederick Leslie Ransome, and William D. Matthew. (Second printing.)
THE PROBLEM OF VOLCANISM. By Joseph Paxson Iddings, Ph.B., Sc.D. (Second printing.)
ORGANISM AND ENVIRONMENT AS ILLUSTRATED BY THE PHYSIOLOGY OF BREATHING. By John Scott Haldane, M.D., LL.D., F.R.S., Fellow of New College, Oxford University. (Second printing.)
A CENTURY OF SCIENCE IN AMERICA. With Special Reference to the American Journal of Science 1818–1918. By Edward Salisbury Dana, Charles Schuchert, Herbert E. Gregory, Joseph Barrell, George Otis Smith, Richard Swann Lull, Louis V. Pirsson, William E. Ford, R. B. Sosman, Horace L. Wells, Harry W. Foote, Leigh Page, Wesley R. Coe, and George L. Goodale.