94 
Noyembkr 2?. 
THE COTTAGE GARDENER. 
to furnish our readers with a plan of tank-heating. 
Dr. Green says:— 
“ I completed a plant-house nearly twelve months i 
since, 40 feet long, 14 feet wide; hack wall 17 feet | 
high, front w r all 7 feet. This is furnished with hot- | 
tom heat hy means of a hot-water tank, covered with I 
slate, on which is a layer of compost of 12 inches j 
thick, in which the plants are either planted or : 
plunged. The atmospheric heat is contributed hy 
means of a 4-inch iron pipe passing all round the 
tank externally, and the whole is heated hy one coni¬ 
cal boiler; thus— 
T, the tank; B, the boiler ; A, the flow-pipe ; R, the return-pipe ; 
S S, a flow and return pipe, which can be substituted when it is 
wished to circulate hot water in the tank only. 
The bed over the tank contains stove plants, the 
shelves greenhouse plants, {fie front trellis and hack 
wall peach and apricot trees, the rafters vines, and 
orcliidese are suspended. 
As yet, all have thriven amazingly; but now comes 
the Winter, and in this multim in parvo I fear that 
sufficient heat for my stove plants may injure the 
vines and peaches, &c. At present my heat is 00° 
during the day and 50° at night. Can I reduce it 
still more, and how far, with safety to the stove 
plants? In order that you maybe able to inform 
me, I annex a list of the plants in the tank-bed, &c. 
Abrus Precatorius. 
Allamanda Cathartica. 
Amaryllis (var.). 
Aphelandra cristata. 
iEschynanthus (var.). 
Astrapcea Wallichii. 
Begonia fuchsioides. 
Cattleya Forbesii. 
Chrysophyllum macrophyllum. 
Coccoloba uvifera. 
Coffoea Arabica. 
Columnea splendens. 
Combretum grandiflorum. 
Cookia punctata. 
Cypripedia (var.). 
Dendrobium (var.). 
Dipladenia (var.). 
Dracocna terminalis. 
Epidendrum (var.). 
Eranthcmum Pulcliellum. 
Eugenia Edulis. 
Euphorbia splendens. 
Ficus Elastica. 
Franciscea liydrangiformis. 
Gardenia Stanleyana. 
-Florida. 
Gesneria (var.). 
Gongora atropurpurea. 
Hibiscus splendens. 
Hura crepitans. 
Ipomcca Horsfallia. 
-Learii. 
Ixora bandhuca. 
-coccinea. 
- crocata. 
Justitia carnea. 
Loelia autumnalis. 
Luculia gratissima. 
Lycaste (var.). 
Mammea Americana. 
Maxillaria (var.), 
Musa sapientum. 
-Cavendishii. 
Musa coccinea. 
Nepenthes distillatoria. 
Oncidium (var.). 
Passiflora quadrangularis. 
Phaius (var.). 
Pimelea spectabilis. 
Poinciana Pulcherrima. 
Psidium Cattleyanum. 
Rhaphistemnia Pulchellum. 
Saccharum oflicinarum. 
Stanhopea (var.). 
Stephanotis fioribunda. 
We have already said that we consider the arrange¬ 
ment of the house is particularly good, and the hot- 
water apparatus is also very complete; but we recom¬ 
mend the vines to be removed from the rafters and 
carried up close under the glass, where they will be 
cool enough to winter. The temperature may be 
safely reduced, gradually , to 45° at night, and from 
50° to 55° in the day-time, till the middle of February, 
and then raised gradually to the heats now employed 
by Dr. Green. The air must be kept dry accordingly, 
and no more water given to the plants than will just 
keep the soil a little moist. The Luculia and Pimelea 
are the only plants in the list that will be inconve¬ 
nienced by too high a temperature, and they should 
be kept near the source of ventilation. The only fear 
we have as to this combination of cultivation is, that 
when the vines come into full bearing the apricots 
on the back wall will suffer from their shade and 
from the heat in winter. The plants we would dis¬ 
card from the above list, as the rest fill their spaces, 
