There seems to be no difficulty about this when there is not too much trouble taken. A correspondent of the London Gardener's Chronicle thus describes how he does it: "In February last I sowed some seeds on three-year-old Mountain Ash in nursery lines, my plan being to rub the berry on a smooth part of the stock about two or three feet from the ground, till almost all the viscid matter was removed from the stone, leaving only as much as would cause the stone to adhere to the stock. On examining them in June I found about seventy per cent, had taken, each stone having produced a protuberance from each end, which was firmly fixed in the bark. They continued so till November, early in which month I left the district, but at that time all seemed as if ready to burst into activity at the first opportunity. The experiment was made on the east coast of Scotland, not more than half a mile from salt water, in a sheltered locality".