1934 What Shall We Drink by Magnus Bredenbek

The Beer Family 153 are easily absorbed by the human system and have definite food value. The two fermented beverages also contain a modicum of carbonic acid which causes the "bead" or "head" to rise as the carbonic acid struggles to release itself from the fluids, which consist in the main of water to a percentage ranging from 8s to 92 per cent. Solid materials in beers and ales range from 4 to 8 per cent and the alconol from 2 to 6 per cent, although in the imported beers and ales this content sometimes varies up to ten per cent.