William Hetherington Harris, The honey-bee: its nature, homes and products (1887)
“ Like the terror inspired into an ox by the smell of freshly-drawn blood in the slaughter-house, is the odour of a bruised comrade to bees. Again, the smell of the liquid from one of their poison bags excites them strongly. A wound just made by a sting rouses others to inflict more wounds; and, if the fluid be presented to them at the entrance of their homes, it at once stirs their fury. If, however, it be allowed to crystallise, and thus to become incapable of emitting any odour, it will be quite disregarded by the bees. ”
