British units Army, Second

Napoleon s armies spread the system throughout continental Europe, but the British (and consequently the Americans) hung to the old English inch-pound-second system. From cgs the kilogram-meter-second (mks) system evolved, and finally SI (Systeme International d Unites) was bom from mks with the addition of units of current (ampere), temperature (kelvin), and brightness (candela). The International Temperature Scale is defined by 13.8033 K (triple point of equilibrium H2) 24.5561 K (triple point of Ne) and 1234.93 K (freezing temperature of Ag). 

The most serious problem which faced Fries when he became chief of the Gas Service, aside from the task of obtaining personnel, was that of providing for a supply of gas masks and other protective equipment for American troops. Just prior to Fries s appointment the British, upon request of Captain Boothby, had tested twenty thousand gas masks received from the United States and had found them entirely unsuitable for use on the battlefield. " Fries knew that he would have to look for other sources of supply and took immediate steps to purchase British masks, or box respirators, as they were called, and French Ma masks. Second in importance to supplying the Army with masks was the task of equipping special gas troops with such weapons as cylinders, mortars, and projectors for the dispersion... 

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