Consider Her Ways by Frederick Philip Grove

I was fully aware that, in leaving the place, we should have to use great care not to expose our own forces to danger from the perfume of royal favour; though I had already concluded from Bissa-tee's immunity that Pogonomyrmex, perhaps by reason of their smaller size, perhaps by reason of the more material bent of their minds, were accessible to the effect of vastly smaller doses than we were ourselves. We must leave at once; or we should be caught by the pest; the urgency of the case admitted of no delay.

Fortunately, a light south wind sprang up before the day was far advanced. Yet I ordered a south-east direction to be taken for our line of march; and when we had gone a matter of some two hundred thousand antlengths, I sent word to Assa-ree to bend north-west again, so as to resume our original line of travel.