Lewis Tonna Dibdin and George Christopher Molesworth Birdwood, 1911 Encyclopædia Britannica, Volume 14… (1911)
“ It is easy to imagine how, as men grew in sensuous appreciation of pleasant perfumes, and in empirical knowledge of the sources from which these could be derived, this advance would naturally express itself, not only in their domestic habits, but also in the details of their religious ceremonial, so that the custom of adding some kind of incense to their animal sacrifices, and at length that of offering it pure and simple, would inevitably arise. ”
