THE SCIENCE OF TO-DAY SERIES 
With many illustrations. Extra Crown 8vo. 55. net. 
BOTANY OF TO-DAY. A Popular Account of the Evolution 
of Modern Botany. By Prof. G. F. Scott Exuior, M.A., 
B.Sc., Author of ‘“‘ The Romance of Plant Life,” Gc. &c. 
“One of the books that turn botany from a dryasdust into a fasci- 
nating study."—Zvening Standard. 
AERIAL NAVIGATION OF TO-DAY. A Popular 
Account of the Evolution of Aeronautics. By CHARLES C. 
TURNER. 
“Mr. Turner is well qualified to write with authority on the subject. 
The book sets forth the principles of flight in plain non-technical language. 
One is impressed by the complete thoroughness with which the subject is 
treated.”—Daily Graphic. 
SCIENTIFIC IDEAS OF TO-DAY. A Popular Account, 
in Non-technical Language, of the Nature of Matter, Elec- 
tricity, Light, Ileat, Electrons, Sc. &°c. By CHARLES R. 
Gipson, A.LE.E., Author of ‘ Electricity of To-Day,” Gc. 
“Supplies a real need. ... Mr. Gibson has a fine gift of exposi- 
tion.”—Birmingham Post. 
ASTRONOMY OF TO-DAY. A Popular Introduction in 
Non-technical Language. By Cecit G. Dotmacg, LL.D., 
F.R.A.S. With frontispiece in colours, G» 45 other illustrations. 
“Dr. Dolmage has absolutely kept to his promise to introduce the 
reader to an acquaintance with the astronomy of to-day in non- 
technical language."—Saturday Review, 
ELECTRICITY OF TO-DAY. Its Work and Mysteries 
Explained. By CHARLES R. GrBson, A.I.E.E, 
“Mr. Gibson bas given us one of the best examples of popular 
scientific exposition that we remember seeing. His book may be 
strongly commended to all who wish to realise what electricity means 
and does in our daily life."—T7he Tribune. 
ENGINEERING OF TO-DAY. A Popular Account of the 
Present State of the Science, with many interesting Examples, 
described in Non-technical Language. By Tuomas W. 
CorBIN. With 39 illustrations 6» diagrams, 
“ Most attractive and instructive.”"—Record. 
“The descriptions which are given of various types of engineering 
structures and work are excellent.”— Yorkshire Observer. 
“ Altogether a most delightful book."—Literary World. 
SEELEY & CO., LIMITED 
