Instead, [Pseudoscientific bodily emanations] is a reference to AURAS, which have ethereally wafted from their origin in the Middle Ages (when they meant “gentle breezes”) to the Victorian era ...

Sulphurous (tcid, at times scarcely appreciable, rises to G, , or 8 per cent in the emanations of the Sol- tara, and to 35 per cent hi the fumeroles or gas vents of tho Island of Vulcnao.