Edited by Professors HUXLEY, ROSCOE, and BALFOUR STEWART.
Introductory. Prof. T. H. Huxley, F.R.S.
Chemistry. Prof. H. E. Roscoe, F.R.S.
Physics. Prof. Balfour Stewart, F.R.S.
Physical Geography. Prof. A. Geikie, F.R.S.
Geology. Prof. A. Geikie, F.R.S.
Physiology. M. Foster, M. D., F.R.S.
Astronomy. J. N. Lockyer, F.R.S.
Botany. Sir J. D. Hooker, F.R.S.
Logic. Prof. W. S. Jevons, F.R.S.
Inventional Geometry. W. G. Spencer.
Pianoforte. Franklin Taylor.
Political Economy. Prof. W. S. Jevons, F.R.S.
Natural Resources of J. H. Patton, A.M.
the United States.