1To Thomas Jefferson from Oliver Evans, 8 May 1805 (Jefferson Papers)
I have obtained liberty of Mr. Clymer to communicate his project—he conceives that an enemy may be effectually prevented from firing a gun either cannon or small arms and be thrown into the utmost confusion by such a shower of either cold or hot water as could be thrown on them by a strong fire engine or a strong steam boiler such as I use with the power of 100 or 150 or 200 bls to the inch at...