But if, on the level of physics, the dissociation of the project to create a mathesis came to exactly the same thing as the discovery of new applications for mathematics, this was not so in all thedomains of knowledge: biology, for example, was constituted, outside a science of qualitative orders, as an analysis of the relations between organs and functions, as a study of structures and balances, as research into their formation and development in the history of individuals or species; all of this did not prevent biology from making use of mathematics, or the latter from being much more broadly applicable to biology than it had been in the past.