Contents

23 May 1975
Vol 188, Issue 4190

About The Cover

The hall of the Franklin Institute, about 1826. ``In the minds of its founders, the Franklin Institute was built on noble ambitions. Consequently, when they gave their ideas visual form, they aimed at elevated expression. The neoclassical architecture of their hall was calculated to suggest strength and simplicity.'' From Philadelphia's Philosopher Mechanics, review on page 835. [Photograph courtesy of The Franklin Institute]