Whether this particular hint is of any value or not, one thing is certain, that it is in the direction of Universal and Comparative Science--the analogical echo of the parts of one Domain of Being with the parts of another Domain and of all other Domains of Being; of the phenomena of one Science with the phenomena of other Sciences; and especially as among the Elements of each--that we must look for the next grand advances in Scientific Discovery. The world urgently requires the existence of a new class of scientific students who shall concern themselves precisely with these questions of the relations and the indications of unity between the different Sciences; not to displace, but to transcend and to cooerdinate the labors of that noble Army of Scientific Specialists, with which Humanity is now so extensively and so happily provided. The _Select_ Lingual Alphabet of Nature, as distinguished from the _Crude_ Natural Alphabet above described, is then the expurgated scale of sounds, say thirty-two; the sounds of usual occurrence in polished languages; one half of the whole number; the residuum after rejecting an equal number of obscure, unimportant, or barbarous sounds, of possible production and of real occurrence in some of the cruder Languages, and as crude elements even in the more refined Languages now extant. The two sounds of _th_ in English, as in _th_igh and _th_y (the _theta_ of the Greek), and the two shades of the _ch_-sound in German, as in na_ch_ and i_ch_, are instances of crude sounds in refined Languages, for which other Languages, more fastidious for Euphony, as French and Italian for example, naturally substitute _t_, _d_, and _k_ (_c_). The obscure and crude sounds would always retain, however (in respect to the idea of a Universal Alphabet), a subordinate place and value, and should be gathered and represented in a Supplementary Alphabet for special and particular uses.