Our method of designating and arranging the perforations of the stamps supplied to the Colony by Messrs. Perkins, Bacon & Co. from 1861 to 1882 is a novel one, but we think it will remove the difficulty that has hitherto been felt in classifying the perforations, as it has always seemed impossible to assign any limit to the number of so-called compounds, which, if we are to believe some recently-published catalogues, must indeed be infinite, and incapable of any classification whatsoever. For instance, in one of these catalogues, five simple and seven compound perforations are given to the stamps of 1861; to those of 1866 seven simple and five compound; to those of 1869 four simple and five compound; and so on through later issues. On the other hand, another catalogue, also of recent date, is content to make the general statement that the issues up to 1880 are perforated 11½ to 15, simple and compound. This is at first sight an apparently innocent statement, but in reality it opens up an appalling perspective of interminable lists. We think we shall have justly earned the gratitude of the many philatelists who (as far as it is compatible with strict accuracy) desire above all things simplicity of arrangement, in having banished from the lists all mention of these fanciful perforations, whether simple or compound. The fact is that in the St. Vincent stamps printed by Messrs. Perkins, Bacon & Co., with the exception of one (that is the yellow-green Six Pence of 1862), there are only two simple perforations and one compound, and although this last makes its appearance very frequently, it is always exactly the same in every issue in which it occurs. No doubt the confusion which has arisen has been caused by the too zealous and indiscriminate use of a perforation gauge limited to two centimetres, and applied to single specimens of stamps, which has led true compounds to be confounded with those apparent deviations from the normal gauge arising from irregularities in the spacing of the holes, irregularities existing in both of the two machines used for these stamps by Messrs. Perkins, Bacon & Co., but in a very much greater degree in one of them than in the other.