*23. Huxley By Professor G. Leighton, M.D.

24. Sir W. Huggins and Spectroscopic By E.W. Maunder, F.R.A.S., of
Astronomy the Royal Observatory, Greenwich.

*62. Practical Astronomy By H. Macpherson, Jr., F.R.A.S.

*63. Aviation By Sydney F. Walker, R.N.,
M.I.E.E.

*64. Navigation By W. Hall, R.N., B.A.

*65. Pond Life By E.C. Ash, M.R.A.C.

*66. Dietetics By Alex. Bryce, M.D., D.P.H.

*94. The Nature of Mathematics By P.G.B. Jourdain, M.A.

95. Applications of Electricity By Alex. Ogilvie, B. Sc.

96. The Small Garden By A. Cecil Bartlett.

97. The Care of the Teeth By J.A. Young, L.D.S.

*98. Atlas of the World By J. Bartholomew, F.R.G.S


PHILOSOPHY AND RELIGION