Some Judges and writers have very little respect for the evidence and opinions of experts. An Iowa Judge says, observation and experience “teach that the evidence of experts is of the very lowest order, and of the most unsatisfactory kind.” One from Maine, speaks of “the vain babblings and oppositions of science so called, which swell the record of the testimony of experts when the hopes of a party depend rather upon mystification than enlightenment.” An Illinois Judge quotes a distinguished occupant of the bench as saying, “if there was any kind of testimony not only of no value, but even worse than that, it was in his judgment that of medical experts.” Lord Campbell said, “Hardly any weight is to be given to the evidence of what are called scientific witnesses: they come with a bias on their minds to support the cause in which they are embarked” [272]. Taylor says, “Perhaps the testimony which least deserves credit with a jury is that of skilled witnesses. . . . Being zealous partisans their belief becomes synonymous with faith as defined by the apostle, and it too often is but the substance of things hoped for, the evidence of things not seen” [273]. On the other hand, Best says, “It would not be easy to overrate the value of the evidence given in many difficult and delicate enquiries, not only by medical men and physiologists, but by learned |111| and experienced persons in various branches of science, art and trade” [274]. And many Judges have spoken of the essential aid to courts and juries rendered by the opinion of the experienced, skilful and scientific witness who has a competent knowledge of the facts involved.