August Sigmund Frobenius
August Sigmund Frobenius ( 1727 ( first mentioned ) – 1741 ? ) , FRS , also known as Sigismond Augustus Frobenius , Joannes Sigismundus Augustus Frobenius , and Johann Sigismund August Froben , was a German-born chemist in the 18th century who is known for the first detailed description of the properties of diethyl ether and the naming of this substance ( "Spiritus Vini Æthereus" ) . 
<triplet> August Sigmund Frobenius <subj> FRS <obj> member of