After a time there is such improvement in the use of the component parts of the mechanism that an inspiration may, if desired, be secured by a depression of the diaphragm, while at the same moment the condition in the splanchnic area is actually improved. Improvement in respiratory exchange is secured by gradual increase in the expansions and contractions of the thorax, which increases the aeration of lungs, the supply of oxygen, and the elimination of CO_{2}. The quantity of residual air in the lungs is greatly increased, and if the expired air is always converted into a controlled whispered vowel during the practice of the breathing exercises very great benefits accrue, notably those derived from the prolonged duration of air in the lungs, and the proper inter-thoracic pressure necessary to force the adequate supply of oxygen into the blood and eliminate the due quantity of CO_{2}. The employment of these whispered tones means the proper use of the vocal organs in a form of vocalisation little associated with ordinary bad habits, and that perfect co-ordination of the parts concerned which is inseparable from adequately controlled whisper vocalisation. There is a rapid clearing of the skin, the white face becoming a natural colour, and a reduction of fat in the obese by its being burnt off with the extra oxygen supply. This reduction in the weight and size is often quite remarkable, as also the development of the flaccid muscles of the abdominal wall and the consequent improvement in the activity of the parts concerned. CONCLUDING REMARKS The foregoing will serve to draw attention to the far-reaching and beneficial effects of what, for the lack of a more satisfactory and comprehensive name, I refer to as respiratory re-education. It is a method that makes for the maintenance and restoration of those physical conditions possessed by every normal child at birth, the presence of which ensures a proper standard of health, adequate resistance to disease, and a reserve power which, if a serious illness should occur, will serve to turn the tide at the critical moment towards recovery. The insurance of such a condition for a generation would mean the regeneration of the human race as constituted to-day; and I have no hesitation in stating that the results secured during the past twenty years, and particularly during the past thirteen years in London in co-operation with leading medical men, justify me in asserting that the practical application of the principles of this new method in education and re-education will be invaluable in overcoming the disadvantages and bad habits of our artificial civilised life, and that they will prove the great factor in successfully checking the physical degeneration of mankind. INDEX =Abdominal wall=, 20, 202, 264, 286, 291; A. pressure, 191, 264, 266, 304, 320, 327, 336, 339.