AQU 



62 



ARB 



jack, such as is used by Deacon in his i bined with the culture of Orchideous 

 ventilating Eolians. Plants sec the latter title. 



"This kind of mechanism very sel- ! Hardy Aquatics xcqnue an aquarium 

 dom goes out of order or requires re- [ proportioned to the size of the rest of 

 pairs, and would require no other atten- the pleasure grounds ; and that its bot- 

 tion than being wound up twice in torn be rendered retentive of water by 

 twenty-four hours, and oiled occasion- puddling with clay. Its sides should be 

 ally. The same vault that contained it sloping, and cut into terraces, so as to 

 might serve for the furnace or boiler ; be suited to the various heights of the 

 for heating the house." — Gard.Enc. plants, and its margins should be form- 



The following are aquatic stove 

 plants : — 



Aponogeton angustifolium, 



distachyon. 



monostachyon. 



Arum venosum. 

 Cyperus alternifolius. 



papyrus. 



Damasonium indicum. 

 Euryale ferox. 

 Menyanthes indica. 



ovata. 



Nelumbium speciosum. 

 Nympha;a cffirulea. 



lotus. 



pubescens. 



pygmaia. 



rubra. 



stellata. 



versicolor. 



Philydrum lanuginosuni, 

 Pontederia cordata. 



dilatata. 



Sagittaria lancifolia. 



obtusifolia. 



Thalia dealbata. 



Propagation and culture. — Being all 

 herbaceous plants, they are to be pro- 

 pagated as these generally are ; some 

 are raised from seeds, which, in gene- 

 ral, should be sown as soon as ripe, and 

 the pots plunged in shallow water ; 



when the plants come up they may be , j,,.„. ..^^.j. .^, ...^.. „ „^.,. 



transplanted into other pots, and shifted glass, and place in a cold frame or pit 

 as they advance in growth, till in a pot j Exclude frost and damp. In spring 



ed of rough stones and fragments of 

 rock, among which marsh plants will 

 grow luxuriantly. 



AQUEDUCT, a conveyance of any 

 kind for conducting water. The Ro- 

 mans made prodigious structures of this 

 kind ; some are still in use, others, in a 

 state of decay, are among the greatest 

 ornaments of Italy. In landscape gar- 

 dening, the aqueduct enables the ope- 

 rator to produce a fine effect, where the 

 absence of water would render the 

 scene tame and uninteresting. 



AQUILARIA malaccensis. Stove 

 evergreen shrub. Cuttings. Loam and 

 peat. 



AQUILEGIA, Columbine. Seven- 

 teen species, and many varieties. 

 Hardy herbaceous. Seed. Common 

 soil. 



ARABIS. Thirty-one species, anS 

 some varieties. Hardy herbaceous and 

 evergreen. Seeds or cuttings. Light 

 soil. 



ARACHIS hypogaa. Stove annual. 

 Seed. Sandy loam. 



ARALIA. Eighteen species. Chiefly 

 stove evergreens, but a few hardy or 

 green-house plants. Cuttings. Common 

 soil. 



ARAUCARIA. Three species. Co- 

 niferous green-house trees. Rich light 

 soil. Cuttings planted in sand in Au- 

 gust take freely. Cover with a bell- 



of sufficient size to admit their flower 

 ing, which will generally take place the 

 same season. Instead of being kept in 

 pots, the plants may be inserted in a 

 bed of earth on the bottom of the aqua- 



give a little bottom heat. Plants thus 

 raised never form good leading shoots. 

 — Card. Chron. 



ARBORETUM is a collection of trees 

 and shrubs capable of enduring expo- 



num. Keep the water warm, say from ' sure to our climate. These are usually 

 70° to 75=' in summer, and leave them ' arranged in genera according to their 

 nearly dry in winter. Nelumbium spe- i precedence in the alphabet; or in 

 ciosum requires a water heat of 84^. 1 groups conformably to the Jussieuean 



Cyperus, Papyrus, Nelumbium, Nym- [ system ; and whichever is adopted it is 

 phfoa, LimnochariSjIIydrocharis, Sagit- I quite compatiole with an attention to 

 taria, and Pentederia, will furnish va- ! facility of access by means of walks, as 

 riety enougli. j well as to picturesque eff'ect. 



Stove for aquatics. — For one com- 1 It is an evil growing out of the fre- 



