Penicillin nontoxic in humans by first performing toxicity tests in animals and then on humans. His subsequent experiments on penicillin's response to heat and pH allowed Fleming to increase the stability of the compound. The one test that modern scientists would find missing from his work was the test of penicillin on an infected animal, the results of which would likely have sparked great interest in penicillin and sped its development by almost a decade. The importance of his work has been recognized by the placement of an International Historic Chemical Landmark at the Alexander Fleming Laboratory Museum in London on
Dickie Valentine Dickie Valentine Dickie Valentine (4 November 1929 – 6 May 1971) was an English pop singer in the 1950s. In addition to several other Top Ten hit singles, Valentine had two chart-toppers on the UK Singles Chart with "Finger of Suspicion" (1954) and the seasonal "Christmas Alphabet" (1955). Valentine was born Richard Maxwell in 1929 (his birth father was Dickie Maxwell) in Marylebone, London. He was known as Richard Bryce after his mother married Bryce. Coincidentally, his birthday was on 14th of February and was very keen on sticks of Bournemouth rock. Valentine's first acting job was at age only