We shall now suppose that the young couple have passed through the trials and dangers of the " honey-moon," as it is familiarly called, and have settled down to the staid conduct of life as " old married people." In this condition they will find themselves surrounded by circumstances very different from their former experiences as single persons, and it behooves them to give careful attention to the precepts of hygiene now, lest peculiar temptations and novel trials lead them to the commission of acts for which they will be bitterly but fruitlessly sorry in after years. Therefore we commence our instructions with some remarks on