APPENDIX A. 
405 
purpurea, Cardamine Jlexuosa, Lonicera Peridymenum, Meconopsis cambrica, 
Geranium rohertianum var. jiore alho, Dentaria hulhifera, Paris quadrifolia, 
Mimulus moschatus, Linaria Cymhalaria, Lamium maculatum, and several others. 
All these flower well, but the atmosphere is too moist, and there is too little sun 
for them to ripen seed ; with the exception of the Mimulus, the Oxalis, and 
the Cardamine, which latter grows with great luxuriance, and furnishes through- 
out the year a most grateful addition to the food of a tame Canary bird. The 
Rhapis Jiahelliformis and Phoenix dactylifera bore the cold during three winters 
in this house, when I was obliged to remove them in consequence of their size. 
A double white Camellia was also planted, about four years back, and blos- 
somed tolerably well for three successive springs, but was killed by the last 
severe winter. In a cold house like this, but with an eastern or western aspect, 
so as to admit more solar light, I believe that Camellias would flower beauti- 
fully, and be far less likely to suffer from the winters cold. The influence of 
light in enabling plants to withstand cold is far too little attended to, and in all 
cases where it is necessary to protect delicate plants in winter, light should be 
admitted, if possible. I shall next mention — 
4. The Alpine Case. Azalea procumhens, Andromeda tetrayona, A. hypnoides, 
Primula minima, P. helvetica, Soldanella montana, S. alpina, Eriophorum alpi- 
num, and a few others, were the contents of my first alpine case. As I thought 
there would not be sufficient light at any of my windows, I placed the case on 
the roof of the house, and in the following spring all the plants flowered well 
except the Andromedas. Forgetting that an alpine summer is not so long as 
ours, I allowed the plants to remain fully exposed to the sun for the whole 
year, owing to which they became so exhausted that some died, and but few 
flowered in the ensuing spring. Warned by this, in my succeeding experiments 
on this interesting tribe of plants, I remove the case after their flowering into 
the coldest and most shady place I can find, until the following winter, when 
they resume their old position. In this way they flourish much better, but it is 
impossible to do them full justice, as we cannot give them the perfect rest 
which they require. 
5. Draiving-Room Case. This case is at present filled in the bottom with 
two or three small Palms, some ferns, two or three species of Lycopodium, and 
several bulbous roots. Within, and along the roof of this case, runs a perfo- 
rated bronze bar, from which are suspended small pots, containing Mamillaria 
tenuis, two or three species of Cactus, and one or two Aloes. In such a case as 
this it is easy to grow bog plants in the bottom and succulents at the top, these 
last never receiving any moisture but in the state of vapour, and that more 
abundantly when they most want it, viz. in the heat of summer. The distance 
between the surface of the mould at the bottom and the suspended plants does 
not exceed eighteen inches. The case stands in the window of a room with a 
southern aspect, and the thermometer in summer frequently rises to 110°, and 
even higher. This case requires occasional watering. 
6. Small Bottle ivith Mamillaria tenuis, a species of Cactus, and two or three 
fleshy species of Euphorbia, This stands under the drawing-room case. The 
