BENEFIT OF TWO OR MORE HOUSES. 17 



same time, or rest altogether at one season ; not 

 even if we endeavour to assimilate these seasons 

 to those of our own climate ; there will always be 

 a number of them, in a collection of the least pre- 

 tensions, that will be springing into activity and 

 requiring excessive moisture and other stimulants; 

 while another portion will be speedily advancing 

 to maturity, and consequently demanding for 

 their future welfare quite a contrary treatment; 

 and a third will assume an intermediate station, 

 in which flowers are produced, the brilliancy and 

 duration of which are materially diminished when 

 continued in an aqueous atmosphere. 



Then, again, there is the great difi'erence which 

 exists between the climate of India and that of 

 Mexico, and the largest portion of South America, 

 to be considered; it would indeed be but wasteful 

 economy to grow the plants from each of these 

 places together, as the temperature necessary for 

 the Indian species would be more than sufficient 

 for those from Mexico, in fact it would be inju- 

 rious. But if two houses are maintained for 

 them, every plant may be allowed its proper treat- 

 ment without disarrangement to its fellows ; thus 

 the structure devoted to Indian kinds being kept 

 at a higher temperature and with more moisture 

 than the American house, the plants of the former 

 may be rested in the latter, while, should it hap- 

 pen that any of the inhabitants of the cooler one 



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