2-8-4 American railroads rostered Berkshires. The table lists data on the American locomotives as they were built. In the motion picture "The Polar Express", the "know-it-all" boy identifies the train's locomotive as a Baldwin 2-8-4 built in 1931, although the actual prototype for the film's locomotive was the Pere Marquette no. 1225, a Berkshire built by the Lima Locomotive Works in 1941. In the "Transformers" television series, motion picture and toy line, the Decepticon triple changer Astrotrain is modeled on a Japanese Class D62 2-8-4 locomotive. "Locomon" in the motion picture "Digimon: Runaway Locomon" is a 2-8-4 type locomotive. 2-8-4 Under
Minim (unit) size of a drop can vary considerably depending upon the viscosity and specific gravity of the liquid. (At the time, the phenomenon of surface tension was not well understood.) The minim, on the other hand, was measured with a graduated glass tube known as a "minimometer", later known as the minim-tube. The minim-tube was a type of graduated pipette, a device invented in 1791 by François-Antoine-Henri Descroizilles. Apothecaries' measures are fully defined in the United Kingdom's Weights and Measures Act of 1878, but the UK's 1963 Weights and Measures Act provided for the abolition of the minim, fluid scruple, and