w/w- an abbreviation for by weight, used in chemistry and pharmacology to describe the concentration of a substance in a mixture or solution. Properly speaking, 2% w/w means that the mass of the substance is 2% of the total mass of the solution or mixture. The metric symbol g/g has the same meaning as w/w.
Midlothian's old motto. Midlothian is a city in northwest Ellis County, Texas, United States. The city is 5 miles (8.0 km) southwest of Dallas. It is the hub for the cement industry in North Texas as it is the home to three separate cement production facilities, as well as a steel mill.
CENTER, TEXAS (Shelby County). Center is seventeen miles from the Louisiana border and 118 miles north of Beaumont at the center of Shelby County.In 1856 or 1857 J. C. and Margaret A. Wilson and Jesse Amason donated the land for the town. The community was involved in the Regulator-Moderator War.In an election called in January 1866 Center was voted the new county seat, but a number of people disputed the results, and no action was taken for some months.n 1856 or 1857 J. C. and Margaret A. Wilson and Jesse Amason donated the land for the town. The community was involved in the Regulator-Moderator War. In an election called in January 1866 Center was voted the new county seat, but a number of people disputed the results, and no action was taken for some months.