Space, time, and deity, the Gifford lectures at Glasgow, 1916-1918,

Mode of access: Internet.

Mathematical recreations and problems of past and present times.

Some arithmetical questions.--Some geometrical questions.--Some mechanical questions.--Some miscellaneous questions.--Magic squares.--Unicursal problems.--Three geometrical problems.--Astrology.--Hyper-space.--Time and its measurement.--The constitution of matter.

On the existence of non-static plane symmetric space-times /

"July 30, 1958"

Creation, God in time and space,

Mode of access: Internet.

Nature and cognition of space and time /

Mode of access: Internet.