Gnomonique, ou, Art de tracer les cadrans solaires /

Mode of access: Internet.

The book of sun-dials;

Mode of access: Internet.

Sun dials and roses of yesterday; garden delights which are here displayed in very trvth and are moreover regarded as emblems.

"The Rosicrucians": p. 366-389.

Apollonius Cattus, oder, Kern der gantzen Geometriæ in drey Theil/

Frontispiece includes a portrait of Jost Bürgi, whose triangular instrument is described in Th. 3.