CATALOGUE 
at the corners and two upon each side at intervals of three or four 
roof sufficient to carry off the drip from frost gathered upon the 
sash ; the front edge was nearly level with the surface, leaving 
just room to slide the sash down a foot, which gave ample room 
at the top for the admission of fresh air when necessary. The 
ground in front of the frame should have sufficient slope to carry 
off the water. The outside was lined with tan one foot thick and 
two feet deep in front, and reaching nearly to the top at the back 
and ends, being well secured with boards nailed to the frame and 
projecting like a roof. In this way the rains and melting snows 
are conducted off, thus keeping the packing perfectly dry. I pre- 
sume dry leaves, straw or saw-dust, would answer equally as well 
as tan, and to many would be far more economical and con- 
venient. 
The bottom of the pit may be covered three inches with dry 
saw-dust, upon which lay a floor of rough boards. Against the 
back of the pit I put up temporary shelves, the upper one coming 
within eighteen inches of the sash ; upon this the plants may be 
kept during the early part of Winter, removing them towards the 
bottom of the pit as the cold weather increases, until they are 
finally placed upon the floor. The shelves may then be removed 
in order to le. in all the light possible. 
The plants will require but very little water, just enough to 
keep up a moisture about the roots ; but especial pains should be 
taken to let in fresh air upon them every mild sunny day, between 
the hours of twelve and two. At night the sash (which were 
single) were covered with straw mats, also in severe cold cloudy 
days. Entrance to the pit may be had by raising one of the sash 
in front, and having a temporary step upon the inside. The snow 
should be swept from the sash immediately after a storm. If the 
plants.get lousy, treat them as recommended for those in rooms. 
If mildew makes its appearance, dust the parts effected with 
sulphur. 
feet. The frame was about twelve feet long, five wide, five and a 
half high at the back, and four in front, this gave a pitch to the 
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