Dissertations academiques sur la nature du froid et du chaud...avec un discours sur la construction & l'usage d'un cylindre arithmetique...
A 1671 French academic treatise by Pierre Petit, published in Paris by Olivier de Varennes, on the nature of heat and cold, with a discourse on building and using an arithmetic cylinder for the Parisian surgeons' academy readership. The pictures include an engraved ex-libris cartouche of the Paris surgeons' academy, a printed title page, a small floral ornament, and a diagram of the cylinder: a numbered grid wrapped around a drum, useful for designers exploring early engraved calculating devices and baroque armorial ornament.



