Abstract
1. Introduction
1.1. General overview of some Mediterranean collections. France, Portuagal, Spain and Italy.
1.2. Panorama in the Anglo-Saxon world
1.3. Creation of didactic science centers
2. Conservation and maintenance of scientific and industrial heritage
2.1. Formation of various teams. Work organization
2.2. Some works carried out by the mechanics group and the one dedicated to wood
2.3. Some work done by the laboratory and precision equipment group