On regulating the Heat of Pineries. 
ther is so boisterous that a flower could scarcely be open a day before it would be 
destroyed. We think it much more adapted for a conservatory or greenhouse 
plant where its beauty is become proverbial, than for the open air, where it would 
scarcely do any more than drag out a miserable existence. As I before stated, 
they may "be grown to perfection in a common frame, if moderate attention be 
paid to them. In the summer months, the frame could be used for growing a crop 
of Melons or Cucumbers. All the attention that would be requisite in this situa¬ 
tion, would be to give them plenty of air in mild weather, throughout the winter, 
protect them well during severe frost with common litter, old hay, or any kind of 
covering that would prevent the frost from penetrating, and attend to keeping the 
temperature of the frame higher iit the time they are growing, and forming their 
flower buds as pointed out before. A few plants might be taken out of this frame, 
about Christinas, and put into a warm window, where they would afterwards 
flower for a long time ; these might again be succeeded by others from the frame. 
By this management. Camellias may be kept in flower several months. 
If the system we have recommended be attended to, an excellent bloom may be 
depended upon. We hare practised it for three years with perfect success, and 
out of two hundred plants we have not had a single failure, even amongst our 
very small ones. 
Chatsu'orth Gardens, Jan. 3, 1832, Joseph Paxton. 
r 
Article IX .—Scale for regulating the Heat in Pineries. 
By VlGOKNIENSIS 
Gentlemen, 
I SEND you for insertion, should you deem it worthy of a 
place, in your Horticultural Register, a scale for the regulation of the 
heat of a Pinery, both as relates to the bark bed, and the temperature 
of the house. 
TEMPERATURE. 
FIRE 
HEAT. 
AIR. 
BARK BED. 
Ev. & Nt. 
5 a.m 
Day 
Morn 
Noon, 
Shut 
not to 
min. 
max. 
min. 1 
max 
giv.at 
more 
up at 
min 
max 
exc. 
January,. 
58 
63 
56 
60 
70 
75 
70 
80 
85 
90 
February,. 
60 
63 
58 
63 
70 
80 
70 
80 
85 
90 
March;. 
60 
63 
60 
63 
76 
85 
74 
80 
95 
100 
April, .. 
60 
63 
60 
63 
80 
85 
75 
80 
95 
100 
May,. 
60 
63 
GO 
63 
85 
90 
80 
80 
95 
100 
June,.... 
60 
63 
60 
63 
85 
90 
80 
80 
95 
100 
July,. 
) 
90 
95 
85 
80 
95 
100 
August,. 
>NO 
FIR 
E H 
EAT 
9o 
100 
80 
80 
95 
100 
September,. 
) 
90 
95 
80 
80 
90 
95 
October,. 
58 
63 
58 
6) 
80 
85 
75 
80 
90 
95 
November,. 
56 
61 
56 
58 
65 
72 
68 
75 
85 
90 
December,. 
1 56 
00 
55 
58 
Go 
70 
68 
75 
85 
90 
It will be perceived that the minimum only, is given for the Morning, 
as when the heat does not exceed that point the fire is intended to be 
made The maximum only is stated for the Day, as it is proposed in 
cold and gloomy weather alone, to attain the degree given by fire heat. 
Of course, in catching and severe seasons, a sudden declension must be 
