Jean Baptista van Helmont has written:
'Ortus medicinae'
Jean Baptista von Schweitzer was born in 1833.
Jean Baptista von Schweitzer died in 1875.
Jan Baptista van Helmont, a Flemish chemist, physician, and physiologist in the 17th century, conducted an experiment where he grew a willow tree in a weighed amount of soil and water, finding that the increase in mass came primarily from water, not soil nutrients. This led him to conclude that most of the plant's mass comes from water.
Jean Baptiste van Helmont
Jean Leyder has written: 'Jean Leyder'
Jean Rey has written: 'The essays of Jean Rey'
Jean Colombier has written: 'The Photograph'
Jean Prinet has written: 'Nadar'
Jean A. Mercier has written: 'Cinema'
Jean Galaut has written: 'Phalante'
Jean Chaland has written: 'Yasume'
Jean Hercourt has written: 'Stabiles'