“As ‘failure is easier of attainment than success in anything,’ it would be possible to the end of time for some surgeon, or official cancer researcher, to declare that trypsin and amylopsin were ‘useless’ or ‘futile,’ in the particular cases treated by him, and used as he employed them. Scientifically, all such verdicts are worthless, unless the evidences for them be produced in full; and these must include the previous history of the case, the duration of treatment, the preparations used, definite statements as to their purity, all necessary details as to their quantitative values, their doses, and the number of these. Science, as a mistress, makes exacting demands upon the observer, and the mere designation of a document as a ‘scientific report’ does not alone confer any scientific value upon its contents.”