And, amid these rich and potent devices of the culinary art (not one of which, probably, had been tested, within the memory of any man's grandfather), poor Hepzibah was seeking for some nimble little titbit, which, with what skill she had, and such materials as were at hand, she might toss up for breakfast.
Early kraft pulp mills discharged black liquor to watercourses. Black liquor is quite toxic to aquatic life, and causes a very dark caramel color in the water. The invention of the recovery boiler by G.H. Tomlinson in the early 1930s, was a milestone in the advancement of the kraft process.
The quinine in tonic water causes it to grow bright blue under a black light. Science Photo Library / Getty Images The bitter flavoring of tonic water is due to the presence of quinine, which glows blue-white when placed under a black light. You'll see the glow in both regular and diet tonic water.