512 
COLLECTIONS AND RECOLLECTIONS. 
mode is practised with cherry stones, and they succeed equally well. 
M. Lenne observes, that the principle of sowing stone fruit is, not to 
let the stones become dry, so that they should either be sown di¬ 
rectly when gathered, or preserved in moist sand during the winter: 
M. Otto adds, from his own observation, that the stones of fruit 
which are injured by maggots never generate.---76. 
Grafting Pears, on Sorbus ancuparia.—M. Floss reported to 
the Pros. Gard. his success in grafting upon these stocks, which 
grow on sandy soil, where pear trees do not prosper, and which indu¬ 
ced him to graft them with pears, which succeeded perfectly. He 
observed further, that one or two branches of the stock should be 
left, to hinder the graft from growing too rapidly, because in that 
case the graft grows much thicker than the stock, and is easily broken 
by the wind. When branches of the stock are allowed to remain 
for two or three years, this does not happen. He also observed that 
the pears obtained from trees treated in this manner seem to keep 
longer, although they are not so well flavoured as when grafted on the 
wild pear stocks.- — lb. 
To Preserve Greenhouse Plants through winter. About the 
time at which greenhouse plants are taken from the borders, go over 
them, and take off what cuttings they can spare, some of which mav 
be cut to pieces, and made the most of; then take pots about eight 
or nine inches diameter, put twenty or thirty cuttings in each, and 
plunge the pots up to the rim in a hot-bed, which has but a slight 
heat. Cover the pots of cuttings with hand glasses, or a small frame, 
and in a short time the cuttings will have emitted roots. They mav 
remain there as long as the weather is mild. When the frost sets in 
remove them to a room, or any other place where they mav be pro¬ 
tected from the cold. A small window, with a shelf in the centre, 
will contain 200 plants. If the same windows were employed for 
holding full-sized plants, two common sized pelargoniums would fill 
it. In about the middle or latter end of March, plant each rooted 
cutting in a small pot, and put them in any sheltered situation, until 
the season for transplanting in the open air .-—Peter Mackenzie. 
