Capillary Action (in part); Diagram.

Simon Newcomb, former Professor of Mathematics and Astronomy, Johns Hopkins University, etc. See the biographical article (Vol. 19, p. 474):

Astronomy, Descriptive; and many other astronomical subjects.

J. H. Poynting, Professor of Physics and Dean of the Faculty of Science in the University of Birmingham. Formerly Fellow of Trinity College, Cambridge. Joint-author of Text-Book of Physics:

Acoustics; Gravitation (in part); Sound.

F. Purser, formerly Fellow of Trinity College, Dublin; Professor of Natural Philosophy in the University of Dublin; Member of the Royal Irish Academy:

Surface (in part).

J. Purser, formerly Professor of Mathematics in Queen’s College, Belfast. Member of the Royal Irish Academy:

Surface (in part).

W. J. M. Rankine, former Professor of Civil Engineering at Glasgow University. See the biographical article (Vol. 22, p. 894):