Before leaving Question II, however, I will deal specifically with two of the prevailing maladies of our time, viz., spinal curvature and appendicitis, and show how the principles I have enunciated have a particular bearing on the prevention and cure of these two serious ailments. 1. _Spinal Curvature._ A perfect spine is an all-important factor in preserving those conditions and uses of the human machine which work together for perfect health, yet there are comparatively few people who do not in some form or degree suffer, perhaps quite unconsciously, from spinal curvature. The present attitude towards this very serious mark of physical degeneration would be ludicrous were it not that the matter is one of almost tragic importance, and I may quote in this connexion a letter of mine which appeared in _The Pall Mall Gazette_ for 14th March, 1908. After dealing with certain other matters which need not be reproduced here, I cited the following instances of the results of our present attitude: “In our schools and in the army, human beings are actually being developed into deformities by breathing and physical exercises. I have before me a book on the breathing exercises which are used in the army, and any person reasonably versed in physiology and psychology, and knowing they are inseparable in practice, will at once understand why so much harm results from them. Take either the officers or the soldiers. In a greater or less degree the unduly protruded upper chests (development of emphysema), unduly hollowed backs (lordosis), stiff necks, rigid thorax, and other physical eccentricities have been cultivated. It is for these reasons that heart troubles, varicose veins, emphysema, and mouth breathing (in exercise) are so much in evidence in the army. As this is a matter of national importance, I am prepared to give the time necessary to prove to the authorities (medical or official) connected with the army, the schools, or the sanatoria that the ‘deep breathing’ and physical exercises in vogue are doing far more harm than good, and are laying the foundations of much graver trouble in the future. The truth is that all exercises involving ‘deep breathing’ cause an exaggeration of the defective muscular co-ordination already present, so that even if one bad habit is eradicated, many others, often more harmful, are cultivated.