![Clyde Mason holds his book Handbook of Chemical Microscopy](https://strategicplan.engineering.cornell.edu/wp-content/uploads/1947/12/18908385414_bc279a6d58_c.jpg)
Clyde S. Mason (Ph.D. 1924), a professor from 1933 to 1966 in Chemical Engineering, developed the idea that properties of materials are related to and controlled by their structure. He related a microstructural approach that became the basis for modern instruction and research into materials