... calcification and decalcification proceed side by side and with great rapidity, and in health there is always a balance on the side of the constructive process. In the children whom we are now considering, saturated as they are, from time to time, with the toxins resulting from repeated infection, ossification may be so interfered with as to cause softening and bending, with the evolution of a state of rickets. Between bone and muscle, too, we find a close relationship. We do not find powerful muscles with softened bone, nor flabby muscle with rigid and ... — The Nervous Child • Hector Charles Cameron