PHOSPHORIC ACID
Phosphoric acid is a drug of rather narrow, yet very definite and great utility. Look at the types that need its help. The weedy, over-grown, over-wrought school children, with growing pains that may spell heart-destruction. The tired and apathetic from unequal struggling with adverse circumstances, mental and physical. The “neurasthenics” that plague us; those, at least, who are worn out, indifferent, apathetic and emaciated.