Word: nutrients
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Dates: during 1940-1949
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Another method is tissue culture. Bits of cancer tissue are stuck to the side of a test tube. A nutrient solution (made of such unlikely ingredients as extract of human placentas) is added. The tube is sealed and put on a vertical merry-go-round in an incubator. As the merry-go-round revolves slowly, the solution washes over the cancer tissue, which grows vigorously just as if it were in a living body. Drugs can be tested against it simply by adding them to the solution...
...physiologists and bacteriologists assembled in secret laboratories under the Chemical Warfare Service. With them worked 3,800 Army & Navy men. In gleaming glassware grew the world's most vicious germs. A flask of cloudy liquid or a blob of nutrient jelly might contain the makings of a pandemic...
Hippocrates preferred enemas to purges, but the Greeks rejected the strange concoctions of bile, vinegar, etc. used by other peoples in favor of water or simple salt solutions, perhaps with a little oil or honey added. Centuries later, physicians in medieval Spain described the nutrient enema and the first bulb syringes...
...sprouted grain mixed with worms and worm-egg capsules. Fed on this at a cost of one-tenth of a cent a day, pullets start laying Grade A hen's eggs before they are five months old. Wizard Oliver also sells worm casts for fertilizer, and a liquid nutrient (for flower growers) which is made by letting water drip through worm casts in boxes...