Address of Professor Huxley. 385 
which was to intellectual Europe, in the sixteenth and seven- 
teenth centuries, what Germany is in the nineteenth. It was in 
Italy, and from Italian teachers, that Harvey received the most 
important part of his scientific education. And it was a student 
' trained in the same schools, Francesco Redi—a man of the widest 
knowledge and most versatile abilities, distinguished alike as 
scholar, poet, physician, and naturalist—who, just two hundred 
and two Parte ago, published his “ Esperienza imtorno alla Gene- 
gauze. But gauze will not keep away aériform bodies, or 
fluid. This something must, therefore, exist in the form of 
lay eggs out of which maggots are —— hatched upon 
able; the mag- 
sumption, that in all such cases of the seeming production of 
life from dead matter, the real explanation was the introduction 
living germs. from without into that dead matter. And thus 
the hypothesis that living matter always arises by the agency of 
