Introduction : the unphilosopher's stone / Robert J. Weber and David N. Perkins
Perspiration in perspective : changing perceptions of genius and expertise in American invention / Robert Friedel
Inventing the field : Michael Faraday and the creative "engineering" of electromagnetic field theory / Ryan D. Tweney
A cognitive framework to understand technological creativity : Bell, Edison, and the telephone / W. Bernard Carlson and Michael E. Gorman
Why Wilbur and Orville? : some thoughts on the Wright Brothers and the process of inventions / Tom D. Crouch
Electron microscopy and microprobe analysis : recalling the ambience of some inventions / James Hillier
The origin of soft-tissue ultrasonic echoing and early instrumental application to clinical medicine / John J. Wild.

The Soil Biotron : an underground research laboratory / James A. Teeri
The synthesis of diamonds / Robert H. Wentorf, Jr.
The origin and development of the first zeolite catalyst for petroleum cracking / Edward J. Rosinski
Discovery and invention in polymer chemistry / Paul W. Morgan
The genesis of the antiparasitic drug ivermectin / William C. Campbell
Stone age knife to Swiss army knife : an invention prototype / Robert J. Weber
The topography of invention / David N. Perkins
The analytic inventive thinking model / Jacob Helfman
Invention in the industrial research laboratory : individual act or collective process? / David A. Hounshell
Inventors and corporations in the maturing electrical industry / 1890-1940 / George Wise
Technology on the move : the role of patents / Donald J. Quigg
Conclusion : effable invention / David N. Perkins and Robert J. Weber.