Paper, 'Several experiments on the mercurial phosphorus made before the Royal Society at Gresham College' by Francis Hauksbee Hauksbee describes two experiments: the first, to show that light is produced from mercury by passing common air through the body of it after the receiver is exhausted; and the second to show that mercury will appear as a shower of fire whilst descending in vacuo from the top to the bottom of a receiver. Subject: Physics Read to the Royal Society on 7 November 1705 Published in Philosophical Transactions as 'Several experiments on the mercurial phosphorus, made before the Royal Society, at Gresham-College, by Mr Fra. Hauksbee, F. R. S.' [1705]