Word: spermatozoa
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Dates: during 1930-1939
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...Graves turned the problem of preserving the vitality of the sperm during shipment over to his crack veterinarian, Dr. Fred W. Miller. From the bulls Dr. Miller extracted semen containing 1,000,000,000 spermatozoa, mixed the fluid with an equal amount of sugar solution, chilled the tubes to 34° F. (spermatozoa kept in warm temperatures lash their tails until they get tired, die). Next he buried the tubes in diatomaceous earth, a good insulator, packaged the whole in a buttermilk container...