74 ABNORMAL FRUITING OF THE COMMON ELM. whatever of leaves; and even a search at close quarters revealed only a few leaves here and there. Other trees which were less affected produced just sufficient leaves to impart a green tinge to the predominant brown of the fruit, when viewed from a little distance. Yet other trees had produced, at this time, a fair amount of foliage, though far less than the normal amount. As the vast quantities of dry winged samara fell from the trees, during the last days in May and the beginning of June, they were drifted by the wind into gutters by the roadsides and into adjacent ditches. In parks and gardens, where they had to be swept up for the sake of tidiness, the resulting heaps were often of surprising size. Elsewhere, the so-called "seeds" lay in most cases until they rotted. Mr. J. Cosmo Melville, relating his observations on the subject in Shropshire, speaks1 of "the immense profusion of seeds, mostly perfectly matured . . . fall- ing like snowflakes (or, with better similitude, chaff) and strewing the ground as leaves in autumn." Again, Prof. G. S. Boulger, writing to me from Richmond, Surrey, says:—" Certainly the fruit crop of the elms this year was phenomenal. Here, on May 22nd and 23rd, the air was full of the samara of U. campestris, which filled the gutters several inches deep; and my sister sent me an account to the same effect from Shropshire." The whole phenomenon was so striking and unusual that no one could fail to notice it; and, at the time, it was a matter of general comment arid conversation throughout the county. No one, not even old men, could recollect anything of the same kind having happened before, so far as I was able to learn, though I made a good deal of enquiry. Yet the phenomenon has probably been observed before; for Mr. Clement Reid, F.R.S., says2 that "the Common Elm (Ulmus campestris) . . . , in England, only produces perfect seed about once in forty years." The phenomenon was, however, by no means confined to Essex. On the contrary, it appears to have been widespread— indeed, general. Mr. Cosmo Melville records it as having occurred in Shropshire.3 The Rev. Augustin Ley says4: "[I observed it] in the neighbourhood of Ross, in Herefordshire, and in every other locality to which I have been," including 1 Journ, of Botany, 1909, p. 324. 2 Origin of the British Flora, p. 11 (1899). 3 Journ, of Botany, 1909, p. 324. 4 Op. cit., p. 355.