Even the absence alone of fore-gone joy is troublesome; how much more when they wind downward into smartful extremities?

The town does not seem to have had a hanse, nor have there been discovered any records showing the existence of medieval trade guilds; […]

The cardinalfishes are interesting in their reproductive biology. They are mouthbrooders, in that the eggs are held, usually in the mouth of the male, until hatching; this is one of the only marine fish families to reproduce in this way.

But the method did not become practicable until Liebig discovered a simple chemical process for dispositing a thin film of silver on a glass surface.