[9] Translation of Cuvier by Griffith, Vol. I. p. 64, note. Cuvier has since adopted the number four. [10] Introduction to Entomology, Vol. III. p. 15, note. [11] By Mr. Vigors. Linnæan Transactions. [12] It will be observed that in the Mollusca, Radiata, and Acrita of MacLeay, all attempts to employ a particular number in grouping will be found futile, a circumstance obviously attributable to our ignorance; and the only conclusion to be drawn from it is this: that, as these tribes can never be rendered available for any numerical distribution, so they can never be fairly and satisfactorily adduced in refutation of such a distribution. To go back two thousand years before the birth of Linnæus, may be thought rather an unlikely mode of obtaining proof of the value of a modern theory in natural history; yet at that time we find a system of insects[13] divided so accurately into seven groups, that every attempt to improve it has, as far as regards these great groups, proved an utter fallacy. Now this array of names, Aristotle, Linnæus, Cuvier and Kirby, thus corroborating Holy Writ, even in direct opposition to our own observations, is entitled to a good degree of confidence; but how much more cheerfully is that confidence given when our own unbiassed judgment must thoroughly coincide! [13] That of Aristotle. Presuming, therefore, that a septenary and circular arrangement, with one seventh superior to the others, does exist in nature, its first application must necessarily be made to the result of the six days' creation, which I consider as typifying six grand groups of matter, and the seventh--the day of rest, emphatically commanded to be kept holy--that Omnipotence who created and presides over the stupendous work.[14] [14] I am fully aware that this part of the subject is far above the comprehension of man, and felt exceedingly reluctant to carry system farther than the two great groups--animals and vegetables; but alluding, as I am compelled to do so frequently, to the works of Mr. MacLeay, I was fearful lest my silence on this particular subject should be construed into consent. See _Horæ Entomologicæ_, p. 179.