IN ALL CLIMATES. 433 



P. S. As the extremes of our climate may pro- 

 duce cases which are not likely to happen in your 

 temperate island. Count Anhalt will be happy to 

 see more observations on such accidents in any fu- 

 ture letter you may address to the Society. A 

 paper of mine on the Russian climate, in the 

 second volume of the Philosophical Transactions 

 of the Royal Society of Edinburgh, may probably 

 afford you all the information necessary to judge of 

 what modification your system may require in this 

 country, although 1 do think it applicable every 

 where, with, possibly, some little alteration in the 

 consistence of your plaster, to suit extremes of 

 heat and cold. This letter being of a public 

 nature, intended to testify the sense of the 

 CEconomical Society of Petersburg, on your use- 

 ful discovery, you may make what use of it you 

 please. 



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