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Updated: June 10, 2025
We adventured timidly into manufacturing competition with the McCormick reaper, which all Europe proceeded straightway to pirate; ten or twelve samples of cotton and three of woolen goods; Ericsson's caloric-engine; a hydrostatic pump; some nautical instruments; Cornelius's chandeliers for burning lard oil now the light of other days, thanks to our new riches in kerosene; buggies of a tenuity so marvelous in Old-World eyes that their half-inch tires were likened to the miller of Ferrette's legs, so thin that Talleyrand pronounced his standing an act of the most desperate bravery; soap enough to answer Coleridge's cry for a detergent for the lower Rhine; and one bridge model, forerunner of the superb iron erections that have since leaped over rivers and ravines in hundreds.
As the other four had two turrets each, Eads was allowed on two of them to try one turret of his own, with the guns worked by steam, on condition of replacing them at his own cost with Ericsson's in case of failure. This was the first manipulation of heavy artillery by steam. The guns were fired every forty-five seconds, or seven times as fast as in Ericsson's turrets.
Old ideals were passing away, and the heritage which the Nineteenth Century was able to pass on to the Twentieth was in preparation. In this preparation Ericsson bore a large and most important part. So long as ships traverse the seas, Ericsson's name will be remembered for his work in connection with the introduction of the screw-propeller.
It is perhaps not amiss that, before looking more closely at the achievements of Ericsson's life and activity, note should be taken of the large dependence of our present civilization and mode of life on the engineer and his work. In different ages of the world's history each has received its name, appropriate or fanciful as the case may have been.
The most important points of contact between Ericsson's work and these advances were in connection with his introduction of the surface condenser, the use of artificial draft, devices for heating feed water, his studies in superheated steam and its use, and his work in connection with the development of the compound principle in steam-engines, his relation to the introduction of the screw-propeller, and to the use of twin screws at a later time.
Furthermore, Ericsson's spirit was proud, and he was little disposed to accept criticism from those whom he felt to be unqualified to pass adequate judgment on his work, while he was especially impatient under the system by which government work was done.
The modern battleship is a vastly more complex structure, and represents more complex ideas and combinations than did Ericsson's "Monitor." It contains a battery of guns of the heaviest type known to naval ordnance. At present such guns are usually of 12-inch bore and throw a shell of about 800 pounds weight, with an initial velocity of nearly 3,000 feet per second.
Only brief mention however can be made of some of the more important lines of work which interested the closing years of Ericsson's life. In connection with his naval designs, he devoted much study to the improvement of heavy ordnance, both as to the gun and its mounting.
The result of one experiment with Ericsson's steamer was sufficient to convince a man of Stockton's sagacity of the immense advantages which the new motor might confer upon the commerce and upon the navy of his country, and forthwith he ordered an iron steamer to be built and fitted with Ericsson's propeller.
With her heavy load of guns and armor she drew 22 feet aft and could work up a speed of barely 5 knots. Faced with this danger, the North hurriedly adopted Ericsson's plan for the Monitor, which was contracted for on October 4, 1861, and launched after 100 days. Old marlin-spike seamen pooh-poohed this "cheesebox on a raft."
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