Minerals — plentiful and trace

Calcium is the switch on the fiber and the store in the bone — Courses 04–07 already said so. Magnesium, copper on the cross-link, iron on the hydroxylases: furniture in a pathway. Trace names this cut also carries: zinc, manganese, molybdenum, iodine, chromium, selenium, fluoride, rubidium. Fluoride and rubidium stand as emotional influence of the material. There is no separate ‘trace minerals’ chapter in this sixteen-page cut — XXVI is one of the romans this academy does not carry. You ask whether the field is moved. The earth is plentiful. The question is whether this body, this hour, this sentence can use what is already here. pH is a real number in blood, not a pendulum sport.