9 Quickened at the 3d month. 11 Quickened at 3½ months. 21 Quickened at the 4th month. 16 Quickened at 4½ months 8 Quickened at the 5th month. 1 Quickened at 5½ months. 4 Quickened at the 6th month. —— 70 —— In a few of these cases, for the sake of convenience I have used round numbers, when two or three days before or after was the exact time; and for the sake of correctness, have omitted several cases, in which there was the slightest doubt in the patient’s mind of the exact time. It appears from this table, that this symptom takes place more frequently between the twelfth and sixteenth week, than before or after these periods; and that subsequent to the 4½ and the expiration of the sixth month, it may occur in the proportion of more than one case out of every five.—Before the third month, quickening seldom arises. This symptom may not be felt by the mother at all, and yet pregnancy exist. This is rare, but the fact is confirmed by many writers; and I have met during the last seven years with two instances, and in both the mothers gave birth to living and healthy children. Now comes the question, how far this symptom is of value, as a sign of the pregnant state? If it has been experienced in former pregnancies, it is invaluable, for I believe it is not to be mistaken. If it is a first pregnancy and doubtful, it removes all obscurity, provided the sensation grows stronger and stronger, until the movements of the child are distinctly felt. Four only of the symptoms of pregnancy have been noticed, because the remainder are not recognisable, except by the accoucheur, although to him of the greatest value when pregnancy is complicated and doubtful from the presence of disease. The nature of these symptoms has been described as plainly, and yet as briefly, as possible, because of the importance of their being clearly understood by married women. I have also endeavored to point out their real value as evidence of pregnancy—how they are sometimes absent in patients who are pregnant, and some of them present in those who are not so—because of the doubt and obscurity which arise from these variations. And lastly, in bringing these observations to a conclusion, I venture to say, that if the married female will only take the trouble to make herself familiar with this little detail, she will not regret the time as lost or misspent, because it will generally guide her aright, and I trust save her many moments of anxiety and discomfort. ON THE DISEASES OF PREGNANCY, AND HINTS FOR THEIR PREVENTION AND RELIEF.