ALCHIMIA, PRELUDIO ALLA CHIMICA?

This paper aims to a review, in the antiquarian scientific library of the Istituto Lombardo, able to find forerunner documents of chemistry. As it is well known chemistry found a rigorous settlement at the end of XVIII century. Actually we have found some books concerning complicated refined empirical technology particularly devoted to metal and making of colours for ceramic processing. It is necessary remember that during Renaissance the scientific cultural climate was alchemistical. So the spread of information concerning this kind of activities among members of guilds was nearly secret. This is the reason why the number of documents found is very poor.