Many persons of good, practical ability, and moderately versed in the laws of acoustics, with an eye for form, and not deficient in a certain conception of art as art; who have the instinct to check any approach to vulgarity, and work on lines, curves and thicknesses, more or less true, elegant, and the best for producing fine tone, have seen, and will yet again see, their efforts of small avail, cast aside, never to assume even mediocre rank in the stern array of violins of modern make.