REMARKS. 235 
them very handsome, and all interesting from the singular structure of 
the flower, and frequently from the different methods in which the 
bulbs are formed. These plants are also worthy of notice from the 
roots of several species affording a considerable amount of food, at 
certain seasons, to the Aborigines. Many other species of menocoty- 
ledonous plants are to be found of great interest; and among the 
grasses, a common one here, as well as nearly all over New Holland, 
is the Kangaroo-grass (Axthistiria australis), a plant of invaluable 
utility in all the grazing districts. 
REMARKS. 
TreromMa JasMINoIDES.—We have on several occasions recom~ 
mended this lovely flowering plant as a charming ene for the green- 
house, either for training up a pillar, or round a low wire-frame, also 
to grow it asa bush, by stopping the vigorous leading shoots, and in 
each particular mode it becomes a beautiful object. A very large plant 
is now in profuse bloom in the conservatory at the Horticultural 
Gardens, and in the Royal Gardens of Kew, plants trained te wire 
frames, and others as bushes, have bloomed most profusely. Their 
handsome large white flowers with a deep crimson inside of the tube, 
and borne in fine clusters, are admired by all visitors. ‘The plant 
grows freely in a rich loam and sandy peat in equal portions. When 
in pots, it requires to be re-potted every year, taking away all the old 
soil possible, so as not to injure the roots. When planted out in a bed 
in the conservatory; and growing vigorously, the shoots should be bent 
and coiled round the support, so as to check the luxuriance. It de- 
serves to be grown wherever there is the convenience. 
Wire-worm.—We have never known any remedy but catching and 
killing this pest. We have covered them with salt for twenty-four 
hours, and they have been none the worse. The best way is, to make 
holes and plant carrots, to be drawn up every morning, and put down 
again. ‘The worms work their way into the carrot half-way, and stick 
there, so that a score may be sometimes pulled out of a single carrot; 
and this continued, not only diverts them frem the vther crop, but lures 
them to their destruction.— A. Z. 
ATMOSPHERE OF ORCHID-HOUSES.—The most obvious defects in 
the present management of Orchid-houses consist in the want of 
attention to their atmosphere, particularly as regards moisture, for the 
plants in such structures derive the greater part of their subsistence 
from the vapour. When the plants are exposed to every change of 
temperature and humidity, they are liable to suffer, and this in pro- 
portion to their luxuriance. Great attention, therefore, should be 
paid to the state of the atmosphere, and to having at command ample 
means of producing an abundance of heat or moisture, the one to 
counteract the other whenever either may be in excess. When an 
excess of moisture takes place, admit external air, raising the tem- 
perature at the same time; when dryness prevails, reduce the tempera- 
ture and increase moisture by evaporation ; for the amount of exhala- 
tion from the foliage depends upon two circumstances, the saturation 
of the air and the velocity of its motion, when dry. Damp air, or 
floating moisture of long continuance, would be detrimental to the 
