Sentence: We certainly cannot complain, seeing that most of the boats on the Nile carry a hundred people, all told, without mentioning those which are laden with a cargo of two or three hundred slaves, packed together like herrings in a barrel, or perched like fowls on planks laid horizontally from one mast to the other.
Combination: herrings in a barrel (root: herring, modifier: barrel)
Property: crowd
Property type: emergent