Memoirs of Margaret Fuller Ossoli
Mem-2-04, line 9048“The old Anaximenes, seeking, I suppose, for a source sufficiently diffusive, said, that Mind must be in the air”
Emerson, Ralph Waldo, William Henry Channing, and James Freeman Clarke, eds. Memoirs of Margaret Fuller Ossoli. Boston: Phillips, Sampson and Company, 1852.
Inferred No work is named. Fuller refers to Anaximenes — “The old Anaximenes, seeking, I suppose, for a source sufficiently diffusive, said, that Mind must be in the air” — and the passage does not identify a specific writing.