In 1873 Prus delivered two public lectures which illustrate the breadth of his scientific interests: "On the Structure of the Universe," and "On Discoveries and Inventions."
In 1873, Prus a tinut doua prelegeri publice ale caror subiecte ilustreaza amploarea intereselor sale stiintifice: "Despre structura Universului" si "Despre descoperiri si inventii".