He also wrote Principles of Gynaecology and the Art of Obstetrics, both in Arabic.

He wrote the definitive "Inflammation, Basic Principles and Clinical Correlates," now in its second edition.

While serving in France, he wrote: Principles of Military Training (1918).

The one who wrote Principles of Planetary Ecology?

And wrote Principles of Political Economy.

Wundt was also the first person to refer to himself as a psychologist and wrote the first textbook on psychology: Principles of Physiological Psychology.

He wrote "Principles of Ocean Physics" (Academic Press, 1987), a textbook now in its fourth edition.

He is also credited as having written Principles of Arithmetic in 1871.

Sir Charles Lyell (English, 1797-1875) wrote Principles of Geology and gave the time needed for evolution to work.

With his former student Donald P. Campbell, he wrote Principles of Servomechanisms in 1948, which is still a standard reference in the field.