We present this work with pardonable pride, believing it will be the means of saving many lives and a vast amount of suffering and needless unhappiness. The importance and demand for a work of this character cannot be doubted. Its need has been announced upon the floor of the Senate Chamber; in resolutions adopted by Church Assemblies; in the Pulpit; in our Religious and Medical Journals; and the need of the knowledge it contains is evidenced by the newspapers, in their daily records of disagreements, separations, desertions, seductions, adultery, insanity, suicide, murder and death, the...