10 aTUCCa FOR PRCSERVINC STONE. 



li. 



Jvquiry concerning the Natural Ectmomy of A^^^^^J^'a 

 Letter from a Correspondent, 



To W. NICHCy^SOf^-^Esq. ^o^^,,^., .-. 

 ' ■ .^•■*^ .;.^R. Jl-jI ^fii-^^, tuau';^-^- 



Inquirr e«B. HaVING always observed, since I first commenced talc- 

 catunU ec<v ing your excellent publication, that you have constantly 

 Komjofants, pg^j^j |j,g kindest attention to the ioquiries of such as wish 

 to be informed on the interesting subjects embraced by your 

 plan* 1 feel almost confident of your permission to request, 

 through the medium of your journal, the communication of 

 such original facts and observations rel&tive to the natural 

 economy of different species of ants, as may have occurred 

 to the notice of any of your numerous readers. It appears 

 to me, that, striking as the habits of this genus of insects 

 certainly are, the subject is, as yet, by no means generally 

 well understood. 



Your compliance with my request will be considered a 

 particular favour. 



I am. Sir, 

 Your obedient humble servant, 



W. H. B. 



III. 



Heport of a Committee, consisting of Messrs. BertJiottet^ 

 Chaptaly Vauquelin, Le Breton, Vincent, and Guyton'Mof" 

 veau, appointed by the Institute to inquire concerning the 

 Process of the late Mr. Bacheljer, j^r the Composition of 

 a preservative Stu ceo*. ; ■ ' 



Speedy alte- M-T was in 1 755 that Mr. Bachelier, struck with the speedy 



ration of the alteration of the stones employed in the principal buildings 

 stone used for _, . , , • . . - , . , 



building at ^t Fans, and the inconveniencies of the process employed 



firii from time to time to renew their surfaces, proposed to the 



* Abridged from the Mag. Enc, Dec. t809i p;24f « .*'•* ^^ • 



swper- 



