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yet its seeds produce hardier plants, and these 

 again still more so, till individuals are obtained 

 perfectly naturalized and acclimated ; and it is 

 very certain that numerous plants that were 

 formerly cultivated in the hot-house and conser- 

 vatory, are now found capable of withstanding 

 our severest frosts, thriving and bearing fruit in 

 the open air. " Thus we see," says Dr. M'Cul- 

 loch, " everywhere flourishing ift the borders, 

 the most luxuriant plants of heliotrope, fuchsia, 

 verbena triphylla, geraniums and numerous 

 others, replacing the wretched starved speci- 

 mens formerly nursed with the greatest anxiety 

 in the green-houses." Whether this be owing 

 to their having gradually become capable of 

 bearing our climate, or to their having been 

 from their first introduction into the country, 

 able to do so, is still a matter of doubt and un- 

 certainty. Much may be said, and many facts 

 produced, on both sides of the question. Per- 

 haps we are too apt to judge of the hardiness of 

 plants, and their capability of bearing the seve- 

 rity of our climate, from the nature of that from 

 which they come ; and thus seldom thinking of 

 giving them a trial, many individuals which no 

 one would have planted but in a very high tem- 

 perature, have only accidentally been discovered 

 to be perfectly able to flourish in the open air ; 

 and because others, on being removed from the 

 house, have perished, it was immediately sup- 

 posed that they could not vegetate but in a 

 warmer atmosphere. But even the common 



