, canon of Ernbrun, his native place, was \ rofessor of mathematics
, canon of Ernbrun, his native
place, was \ rofessor of mathematics at Paris, and was employed some time on the Journal des Savans, but becoming blind, he entered the Quinze- Vingts of Paris, where
he died in. 1693. The chief of his works are, l.“The
new science of the nature of Comets.
” 2. “A Discourse
on Comets.
” 3. “Three Discourses on- the art of prolonging Life/' suggested by an article in the Gazette of
Holland concerning a Louis Galdo, who was said to have
lived 400 years. These discourses are curious from the
number of anecdotes they contain. 4.
” A Tract on Spectacles for assisting the Sight,“1682. 5. A Treatise on
Prophecies, Vaticinations, Predictions and Prognostications,
” against M. Jurieu, 12mo. 6. “A Treatise on
Speech, on Languages, and Writings, and on the art of
secret speaking and writing,
” Liege,