To guard against taking cold is one of the maxims, that the pregnant woman should heed, especially during the last half of gestation when the prominence of the abdomen shortens the skirts in front and removes them off from the limbs. Flannel drawers properly adapted to the limbs and worn underneath the muslin ones affords the best protection that can be adopted, and it replaces cumbersome skirts. Sudden extreme variations of temperature should also be avoided, like going from an overheated apartment into the cold outside air, or into another cold chilly room. In making these changes, one should gradually cool off, and then by putting on additional clothing, wraps or shawls, the danger of taking cold may be removed. Hot coffee or tea or hot alcoholic beverages are equally as dangerous as overheated apartments, for anything which stimulates the circulation of the blood in an inordinate degree is liable to produce a congestion of the placenta, and thus incite an abortion; hence fevers of all kinds are known to have brought about an expulsion of the fetus. On the whole, either very hot or very cold temperatures are to be avoided, for instance, prolonged staying in cold weather or lengthened exposure to the rays of the sun should be prudently guarded against by the pregnant female. Of course this is not to be construed as meaning, that she should not partake of exercise in the open fresh air—far from it, but the exercise shall not be forced or driven, it shall at all times be voluntary and passive, so that when a tired feeling comes on, she can rest and refresh herself. The best time for these little walks is in the morning and evening in the summer season and in the middle of the day in cold weather. A rough, uneven walk should be avoided because she may stumble; jolting in either street cars or wagon is equally pernicious. A great deal of stair climbing is injurious, and when it becomes necessary it must be done slowly; running the sewing machine has caused many miscarriages. Avoid running, jumping, riding on horseback, and lifting heavy weights, hanging laundried clothes on lines, in fact everything that can strain the muscles, bear down, increase the intra-abdominal pressure and excite the nervous system.