Fill in each numbered blank with one suitable word or phrase. Sir Davy Humphry is considered to be (Question 41) _____ famous son of Penzance and one of the (Question 42) ______ scientists of the 19th century. Davy was born in Penzance in 1778, the son of a woodcarver. (Question 43) ___ the age of 16 he was apprenticed to a fecal doctor and became (Question 44) _____ in chemistry. In 1798 he left to work in a medical laboratory in Bristol. There he (Question 45) _____ the pain releaving effects of laughing gas (nitrous oxide) and suggested its anaesthetic use. When he was 24, Davy was a professor (Question 46) ____ chemistry at the Royal Institution. He founded the science of electro-chemistry and discovered 6 new elements (Question 47) ____ potassium and sodium. He became famous and was honoured throughout Europe. Davy is remembered now for his work on the miner’s safety lamp (Question 48) _____ bears his name, but perhaps his greatest contribution to science was the (Question 49) _____ he gave to the young Michael Faraday. Davy supported the Royal Geological Society in enzance and (Question 50) _____ money to his old school. He died in 1829. Question 41:
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