Mattei’s own promotional literature, translated and reprinted for the English market, claimed his remedies were “among the most valuable remedies known to men” and capable of “assisting the healing force of nature in its warfare with almost all kinds of disease,” including illnesses regarded as incurable by other systems of medicine (Gliddon, Stepping Stones to Electro-Homoeopathy, 1892). The evidence offered for this sweeping claim was testimonial: Mattei’s own reported cures and those of endorsing physicians such as R. M. Theobald; no source in this bundle documents a proving, chemical analysis, or controlled comparison accompanying it. Writing in the homeopathic profession’s own press within a few years of the claim’s English translation, E. W. Berridge examined the strongest case Theobald had published — a recovery from “marasmus” attributed to Mattei’s remedies after ordinary homeopathic treatment reportedly failed — and found the account withheld the details needed to establish that the prior homeopathic remedies had even been correctly selected, leaving the case as evidence of nothing beyond “that certain unknown remedies cured after other unknown remedies had failed.” Berridge assessed Mattei’s founding pathological theory itself as erroneous, meaning any cures attributed to the system “must be accidental.” No source in this bundle documents a controlled trial supporting the cures-all-disease claim, at any point from 1865 to the present.