THE COLICKY CRY
Perhaps the greatest cause of the most crying during infancy, next to that of over-indulgence, is ordinary colic which—
... manifests itself in every degree of disturbance from mere peevishness and fretfulness to severe and intensely painful attacks in which restlessness passes into grunting, writhing, and kicking; the forehead becomes puckered and the face has an agonized expression; the baby tends to scream violently and draws his thighs up against his belly, which will usually be found to be hard and more or less distended.
A colicky baby completely upsets the household and greatly disturbs the mother, who requires both quiet and rest that she may the better produce the life-sustaining stream so much needed for the upbuilding and development of the growing child.