In addition to herbal and zoological materials, apothecaries and medics employed a wide range of geological materials from classical times to the mid-eighteenth century.  This lecture from Dr. Chris Duffin will focus on geological ingredients collected and exported from Malta, and will consider how a well-stocked geological collection was deemed useful against all sorts of infections, parasites, poisons and diseases.

Guests are welcome to attend their first St John Historical Society lecture on a drop-in basis. Subsequently, we invite you to become a member of the Society.