Apart from the pleasant, almost romantic, association of these names, the remedies are closely allied, and it is of value to consider them together. As will be presently noted, there is such a great resemblance, even identity, in many of their respective symptoms that it is impossible not to believe that, fundamentally, there must be a great resemblance in their respective modes of attacking the human body, and an identity in the principal human tissues affected by them. It must be remembered that each tincture is a complex affair, chemically, and, as always in these cases, certain elements and compounds therein may count especially in the final resulting action. But in the present state of our knowledge, deplorably deficient as it is with regard to an exact estimate of (for instance) the mineral constituents of complex tinctures, there is little value in speculating whether or no these entities could be simplified and their provings brought home to one or other of their component parts. The elemental remedies which they recall most are those of the platinum, palladium, stannum group, yet there is no reason to suspect the presence of any of these metals, so for the moment it must be confessed that the drugs must be considered as a whole or not at all.