The Third 

 William Thompson Sedgwick Memorial Lecture 



For the purpose of commemorating the services of Wil- 

 liam Thompson Sedgwick to the cause of Biology and 

 Public Health there has been established a Memorial Lec- 

 tureship in the department of the Massachusetts Institute 

 of Technology which he created. The desire of the 

 founders is that the Sedgwick Memorial Lectures shall be 

 given from year to year by men of distinguished eminence 

 in any one of the subjects comprehended within the general 

 scope of Biology and Public Health in order that it may 

 fittingly express the deep and broad sympathy of the man 

 whom the Lectureship is designed to honor. 



