Having cleansed the reservoir, the faucet should be shut off and a level teaspoonful of the antiseptic tonic dissolved in a little warm water in a cup or glass and poured into the reservoir, which should then be completely filled with water as hot as the hand can comfortably bear; not to simply dip the fingers in and withdraw them, but so that you can immerse the hand and allow it to remain without discomfort. If tested with a thermometer the water should be from 100 to 105 degrees Fahr., but the hand is a safer guide, as it prevents any possible danger from a thermometer out of order, or mistaking a figure in a poor light. If tested by the hand you are absolutely safe, since water can be used twenty degrees hotter internally than externally, but in its passage from the body it would be painful to the external parts. Hot water is the best solvent for impacted fæcal matter, and, on the other hand, water below the temperature of the body is likely to cause pain. If the hands are impervious to heat, an excellent plan is to test the water with the tip of the elbow, which is a most sensitive part of the body. It is necessary that the reservoir should be absolutely full to insure the exclusion of air, as that is also likely to cause pain, and, in addition, its presence is likely to prevent the proper reception of the water, as, according to an established law in physics, two bodies cannot occupy the same space at the same time. For this reason it is advisable to solicit the bowels before taking the treatment, as, if even no fæcal matter is expelled, pent-up gases are frequently liberated. The reservoir having been filled as directed and the above directions carefully observed, the “Cascade” should be laid down and the “injection point” screwed in. It is then ready for use. Being all ready, the stick of rectal soap should be dipped in water--to moisten it--inserted in the rectum and withdrawn. This is simply to lubricate the passage and facilitate the admission of the “injection point.” Then, standing in front of the seat on which the “Cascade” is lying (as if preparing to sit down), pass the left hand between the lower limbs and grasp the handle of the faucet, to guide the “injection point” into the rectum, and then carefully sit down upon the “Cascade.” When the “injection point” has been completely introduced and you are comfortably seated, relax the muscles and allow the whole weight of the body to rest freely on the “Cascade,” and turn on the faucet, partially at first, then, after a few seconds, turn it on fully and you will readily receive the water. The most convenient place to use the “Cascade” is in the bathroom, placing it on the closet seat; or you will find the ordinary bedroom “commode” a suitable article for the purpose, but if neither of these are available, then any firm seat, such as a wooden-seated chair, will do, but taking care to have a vessel at hand in which to discharge the contents of the bowel.