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
Ignatius Valentine Chirol world to places like Morocco, Egypt, South Africa and, especially, India. In addition, he published a number of other books. Chirol died in London in 1929 and was missed by many. Major-General Sir Neill Malcolm called him the "friend of viceroys, the intimate of ambassadors, one might almost say the counsellor of ministers, he was [also] one of the noblest characters that ever adorned British journalism". He was buried in the Brighton Extra Mural Cemetery. Who's Who (UK) Ignatius Valentine Chirol Sir Ignatius Valentine Chirol (28 May 1852 – 22 October 1929) was a British journalist, prolific author, historian and