It's clear that North took some original steps in that direction, but Hall probably had the most complete approach and should get the most credit. But for Hall, unfortunately, the data are all impressionistic - what people said. None of his machinery survived. His patents were all lost in the Patent Office fire.

The drive to scale in almost every endeavor. The British went very large scale in ship building and a few other industries. Their steel plants were bigger and much more advanced than ours after the Civil War, but we had blown past them by the mid-80s.

Whitney proved to be a competent manufacturer, but wasn't an original inventor to any important degree. Thomas Blanchard was a true genius: his stock making machine was the daddy of all the industrial profiling machinery, like the 1870s universal milling machine, that was the especial American contribution to machining technology. By that time, the British conceded that machinery innovation had shifted to America.

The paradigm of the development of natural resource-based industry - meatpacking, lard, timber, iron and coal, grain. Cincinnati's lard processing plants looked a lot like JDR's oil refineries thirty years later.

I would speculate that a critical mass of the population has to internalize a middle class outlook first. International aid experience has demonstrated many times that just building railroads doesn't get you there. You need people ready to sue them.

We were suddenly getting big, with burgeoning capabilities on all sides, but very clumsy, knew we were on some kind of ride, and things changing fast, but with very little idea of what was going on.

Military power tends to be a function of economic power, and the British Navy was the essential capability for establishing the imperial sway - which was attuned to furnish the raw materials for the British manufacturing ascendance. So they were mutually reinforcing.