THE FLORAL WORLD AND GARDEN GUIDE. 



115 



The solution of a difficulty in this simple way is a matter of 

 more than passing interest, for where it appeared impossible to 

 employ a hot-water system it has been effectually accomplished, and 

 a most excellent forcing-pit obtained into the bargain. It is an 

 important exemplification of established principles that the lean-to 

 which adjoins the boiler, and receives its pipes directly from it, 

 obtains far less heat than the Paxtonian, which is twenty-five feet 

 distant, and the pipes which supply it first have to heat a large body 

 of air and material in the forcing-pit. The lean-to is never more 

 than a decidedly cool greenhouse, but the Paxtonian may be heated 

 to the pitch of a stove by simply driving the fire a little. The 

 difference is due entirely to the fact, that from the boiler to the 

 Paxtonian the loi^es rise, whereas in the other house they are on a 

 dead level throughout. This very fact proves that our difficulty in 

 the first instance was not imaginary, and renders its solution the 

 more satisfactory. 



The annexed figure of the Paxtonian will bring before us another 

 interesting particular. It will be seen that there are five tiers of 

 plants, one above the other, from the ground to the summit. "We 

 have represented one pot on each tier simply to avoid crowding the 

 picture ; but the entire house is crowded all the winter in just this 

 manner, from end to end, and is made to winter almost as many 

 plants as its vertical as well as its horizontal measurements will 



admit. It would not be worth while to say so much, unless it could 

 be added that our plants are never drawn, never injured in any way 

 by being thus arranged, shelf above shelf, from floor to apex of roof. 



