His best known work is the (1679), showing the
parallelogram of force. He also wrote (1680) and (1685). His writings are numerous and varied. Among them may be mentioned: • , (Paris, 1675); In English → (London, 1676) – of this, twenty editions were published. • , etc. (Grenoble, 1687), translated into French by order of the
Bishop of Châlons under the title (Lyons, 1689). • (Paris, 1689,
A harmony or concordance of the Four Gospels). In this work he contends that
John the Baptist was twice cast into prison, first in Jerusalem by order of the
Sanhedrin, and later by
Herod in Galilee. He maintains also that the Jesus and his Apostles did not eat the
paschal lamb at the
Last Supper, and that the Crucifixion occurred on the day on which the Jews celebrated the Passover. He considers
Mary Magdalen,
Mary the sister of Lazarus, and the sinner mentioned in Luke, vii, 37 sqq. to be one and the same person. These and other opinions involved him in controversy with
Bulteau, pastor of Rouen,
Jean Piénud,
Le Nain de Tillemont, and others (see , Paris, 1693). • , which is a development of his introduction (Lyons, 1696; Jena, 1709; Amsterdam, 1710). It was translated into French by
Jean-Baptiste Morvan de Bellegarde (Paris, 1697) and by Boyer (Lyons, 1709). In this work he calls in question the historical character of the
book of Tobias and
book of Judith, and maintains that even after the
Council of Trent a difference of authority should be recognized between the proto-canonical and
deutero-canonical books of the Bible. • (Rouen, Paris, 1697). • A volume of commentaries on his previous concordance of the four Gospels (Paris, 1699). • A Latin treatise on the Ark of the Covenant (Paris, 1720), a posthumous work published by Desmollets, who prefixed to the volume a biography of the author. ==See also==