It should be "Hot House," as this room is not adapted to forcing purposes.
The air hung wet and steamy like the atmosphere of a hot house.
I suppose it is you who wrote the article in the 'Gazette de Cologne' about the hot house (the Jesuit novitiate).
Hot house tomatoes travel in square braid, climax or paper fibre baskets, now rather commonly, the latter.
"These ghosts ...