Where, then, does this bring us? With such numerous and well defined variations in dimensions in the printed stamps, we should look for the cause in the simplest and most natural method by which they could readily be produced, which is furnished by the third theory presented. Concerning this we quote from the London Philatelic Society's work on Ceylon:[44]-- In reference to the variations in the size of the stamps of Issues III and V [no watermark and Crown CC], Major Evans, who was the first to propound the theory that these variations were due to differences in the nature of the paper employed, writes as follows:-- "The theory of the expansion and contraction of the paper being now pretty generally accepted, as accounting for the variations observed in the size of the stamps of the early issues of Ceylon, it seems necessary to explain exactly what that theory is, and how these differences are supposed to arise. Previous to printing from plates engraved in _taille-douce_ the paper is wetted, which, as is well known, causes it to expand; the amount of expansion varies, no doubt, considerably in different kinds of paper, and it must also vary with the amount of moisture in the same kind of paper, for as the paper dries it returns to its original dimensions, and, therefore, up to a certain point, the wetter it is the greater will be the expansion. In any case the paper is in a state of expansion at the time of printing, both from being wetted and from being stretched out flat and pressed, and the impression when first printed is then, and then only, in all cases the size of the engraving upon the plate. It then dries, and in so doing contracts, and the greater the amount of expansion the greater will be the amount of the subsequent contraction, so that the smallest stamps are those printed on the paper which expanded most, and the largest those on the paper which expanded least. The minor variations of size may be due to the paper being more or less damp when used, but probably a very slight difference in the thickness or density of the paper would cause some variation in its expansion. The marked difference in size of the stamps on thin, unwatermarked paper, which were the first to attract the attention of Philatelists, is no doubt due to that particular variety of paper, which is very tough and elastic, and which has been found to expand very greatly on being wetted and stretched." [44] =Postage Stamps, &c., of British India and Ceylon=, page 69.