If explained in advance to patients with chronic diseases, the facts of retracing may not cause the patient to become discouraged as he would if he failed to understand them. If he knows before your work is commenced that he may expect such phenomena but may possibly escape them he meets them as necessary parts of the process of cure. If they are not explained in advance he is likely to feel that you are doing him injury and to discontinue your service just at the time he most needs them. In fact, it occasionally happens that if adjustments are stopped at some irritant stage of the cure that condition will remain and do great damage. This theory of retracing has been much abused. Chiropractors have used it to cover a multitude of errors in practice. With some it becomes a habit to call all unfavorable events which occur during adjustments retracing, thus shifting the blame from their own shoulders to Nature’s. This is a pernicious practice because it deceives the patient and also because too frequent repetition of this explanation finally deludes the practitioner into the belief that all such events really _are_ retracing. This view withdraws his attention from his own technic and he ceases to discover his own mistakes by ceasing to look for them. It is best in the face of any painful or apparently unfavorable development always to examine our own work thoroughly to detect any possible error in diagnosis, palpation, or selection of move for correction. It is always possible for us to err and our cases should be observed at every stage with the most minute care to insure accuracy in detail. Limitations of Chiropractic There are many things which can be done better by others than by a Chiropractor. There are others for which the Chiropractor’s training does not fit him at all and to which his methods do not in any sense apply. Knowledge of these limitations is just as essential as acquaintance with the powers of the vertebral adjustment. Bony dislocations other than vertebral, fractures, wounds causing, or likely to cause, hemorrhage or severe internal injury, should at sight be diverted into the hands of a surgeon. The Chiropractor receives no training in handling such cases and has neither legal nor moral right to attend them. In obstetrics likewise no practical training is given which would prepare the practitioner for delivery and he is unprepared to use necessary asceptic or antiseptic measures. Some individual cases of disease usually curable will have advanced so far as to require surgical interference. Abscesses or suppurative diseases internally located or having any liability to discharge internally must be avoided. Gangrene, cancer, the advanced stages of tuberculosis (usually) are incurable.