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A firkin was also a British unit for the sale of beer.It is one quarter of a barrel and its value depends on the current size of a barrel, but at present: [7]. 1 firkin = 0.25 barrel = 9 imperial gallons = 10.8 U.S. gallons = 41 litres
US dry barrel: 7,056 cubic inches (115.6 litres; 3.3 US bushels) . Defined as length of stave 28 + 1 ⁄ 2 in (72 cm), diameter of head 17 + 1 ⁄ 8 in (43 cm), distance between heads 26 in (66 cm), circumference of bulge 64 in (160 cm) outside measurement; representing as nearly as possible 7,056 cubic inches; and the thickness of staves not greater than 4 ⁄ 10 in (10 mm) [2] (diameter ≈ ...
[nb 2] Note that a 252-gallon tun of wine has a mass of approximately 2060 pounds, [6] between a short ton (2000 pounds) and a long ton (2240 pounds). The tun is approximately the volume of a cylinder with both diameter and height of 42 inches, as the gallon was originally a cylinder with diameter of 7 inches and height of 6.
It was a very large wooden barrel. A standardized hogshead measured 48 inches (1.22 m) long and 30 inches (76.20 cm) in diameter at the head (at least 550 L or 121 imp gal or 145 US gal, depending on the width in the middle). Fully packed with tobacco, it weighed about 1,000 pounds (454 kg) [citation needed].
This made a Wine Gallon "Reputed Pint" equivalent to 2 ⁄ 3 US liquid pint (10.66 US fluid oz.), 11.09 imp. oz, or 315 mL. Although the Imperial system was introduced in 1824, bottles of ale or beer were still sold in Reputed Pints (13.3 imperial oz) but were now based on the Imperial gallon (based on the British Ale Gallon).
The table of imperial avoirdupois mass is the same as the United States table up to one pound, but above that point, the tables differ. The imperial system has a hundredweight, defined as eight stone of 14 lb each, or 112 lb (50.802 345 44 kg), whereas a US hundredweight is 100 lb (45.359 237 kg). In both systems, 20 hundredweights make a ton.
Icariin is a chemical compound classified as a prenylated flavonol glycoside, a type of flavonoid. It is the 8-prenyl derivative of kaempferol 3,7- O -di glucoside . The compound has been isolated from several species of plant belonging to the genus Epimedium which are commonly known as horny goat weed, Yin Yang Huo, [ 1 ] and Herba epimedii ...
The wine gallon, which some sources relate to the volume occupied by eight medieval merchant pounds of wine, was at one time defined as the volume of a cylinder 6 inches deep and 7 inches in diameter, i.e. 6 in × (3 + 1 / 2 in) 2 × π ≈ 230.907 06 cubic inches.