Let Medicine, Osteopathy, Spondylotherapy, Christian Science, Massage, and Electricity have their field. It is not ours. Nor can any of these methods be rationally combined with Chiropractic. Their basic principles contradict ours; their application interferes with the results of adjustment. If you claim to remove the cause of disease, _do so_, and do not mar your work by treatment of effects. SPINO-ORGANIC CONNECTION It has been said in a previous section that when subluxation and disease are associated the subluxation always precedes the disease and that the former is the cause, the latter the effect. So clearly do we understand this law that we are able to say _what_ subluxation would cause a certain disease and err by only so many cases per centum as there are variations from the usual structure of the spinal column and the nervous system. But merely to state that a second Dorsal subluxation causes heart disease is not enough. We must know why and how it causes heart disease and whether, perchance, some other subluxation may sometimes have a like effect. We must map out the sphere of malign influence of each possible subluxation so that when our fingers encounter it it at once and inevitably suggests its possible effects, from which, by diagnostic methods, we may choose the one toward which most symptoms point. And we must know the relation of every nerve in the body to peripheral organs and their functions so that when we encounter indubitable evidence of some functional or organic disease we may know exactly where, in the spinal column, to seek for its cause. We have learned how to discover a subluxation, how to adjust it, and how that adjustment permits a natural cure of its abnormal effects. We must now learn exactly _where_ to apply adjustment for any given organ in the body or for any disease. It must be understood in interpreting this statement and all those which follow in this section that it is never proper to adjust a vertebra merely because it is stated to be the cause of a disease believed to exist in a patient. No vertebra should be moved unless palpation determines it to be subluxated. Rather let it be known that _as a rule_ the statements of spino-organic connection here made will prove to be verifiable by palpation. There is no rule in Chiropractic without some exceptions, and mere diagnosis of disease is too notoriously unreliable to serve as a guide to adjustment without the verification of the trained touch. The Field of Study We wish to know the relation existing between each part of the Nerve System and other parts and between each part and the other organs of the body. Especially we wish to understand the relation between each part of the Nerve System and the spinal column, by which permanent subluxations of the latter interfere with the former’s action and therefore with the peripheral organs.