Hermann Weyl (1885-1955) was a German mathematician, theoretical physicist and philosopher. He fled Nazi oppression, obtaining a position in the United States at Princeton University’s Institute for Advanced Study. A talented scholar and writer, he published several notable works. Some of his early works are referenced here.

In 1913, Weyl published a book on Riemann surfaces, *Die Idee der Riemannschen Fläche*. The title page and table of contents are shown below, together with the first page of the text, which starts with the concept of an analytic function.

In 1918, Weyl wrote on the arithmetical foundations of mathematics in *Das Kontinuum*. The title page and table of contents are shown below:

In 1919, Weyl published *Raum. Zeit. Materie. (Space, Time and Matter).* The title page is shown below, together with the first two pages of the text, which begins with a discussion of the mathematical properties of space.

*These three works, the first two from the University of Toronto and the last from the University of Illinois, can be viewed in their entirety on the Internet Archive.*

Index to Mathematical Treasures