362 Mr. Langton on Artificial Climates. 



covered during a long succession of ages by the various strata 

 super strata forming the present crust. But if this be so, can 

 we possibly suppose that the physical circumstances were at 

 all similar at the earliest period, before a single deposit had in- 

 crusted this igneous mass; and at present, when it is buried 

 beneath an accumulated crust of such vast thickness, which 

 at once offers so great a resistance to any action of the sub- 

 jacent igneous fluid ; and must also in its formation have been 

 accompanied by so great a refrigeration of the surface? 

 [To be continued.] 



LVI. Some Remarks on the Advantages which might be expect- 

 ed to be derived from the Formation of Artificial Climates in 

 this Country ; showing their Value to a numerous Class of 

 Invalids, the Conditions which should determine their Shape, 

 Size, Locality, Arrangement and Structure, their first Cost, 

 annual Expense, and, the 'probable pecuniary Benefit which 

 would result to Persons embarking Capital in such a Specu- 

 lation. By Mr. J. S. Langton.* 



FT is universally admitted that the English climate is too se- 

 -*■ vere and too changeable for persons of delicate constitu- 

 tions having a tendency to consumption or decline; hence the 

 expediency of such invalids resorting to warmer climates, a 

 remedy which in most cases is only to be obtained either by 

 a total separation from all kindred and acquaintance, or by 

 causing a whole family to leave their country, perhaps for- 

 saking an estate, or relinquishing a business, for the exclusive 

 benefit of one of its members. The fatigues of a long journey 

 or voyage have to be encountered, medical advice has for a 

 time to be suspended, and when renewed has to be procured 

 from one who is a stranger to the constitution of his patient. 

 If therefore a possibility exists of offering to invalids so cir- 

 cumstanced a climate equally mild and salubrious to that of 

 Italy, in the midst of their relatives and friends, and within 

 reach of their accustomed physician, it must be presumed that 

 many would gladly avail themselves of such a blessing. 



In proceeding to show how such a desideratum is to be ob- 

 tained, it is obvious that to mitigate the severity of winter, or 

 to regulate the variable temperature of other seasons, a space 

 must be inclosed, and the separation of the air occupying that 

 space from the external atmosphere must be so effected, that 

 nothing injurious to health may be occasioned, either by the 

 inclusion of noxious vapours, or by the exclusion of such por- 

 tions of light and air as are conducive to health. And as the 

 * Communicated by the Author. 



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