far MacCulloch on Perfumes for preventing Mouldiness. 33 



of which these waters held the greater part of carbonate of lime 

 in solution. It results from this, that the deposits of the 

 marshes are rather geological formations than the others ; and, 

 in fact, the mineralogical characters which they present, bring 

 them much nearer in nature to various mineral beds of the ter- 

 tiary formations than any of the former tufas, even of those 

 which are the most solid and most ancient. 



It is these waters, charged with calcareous particles in solution, 

 and at the same time with mud simply suspended, which often 

 agglutinate on the declivity of mountains the small fragments of 

 all kinds detached from the neighbouring rocks. There result 

 kinds of breccia or puddingstone, having very little solidity, 

 which are pretty commonly found in the high mountains, and of 

 which Hungary also presents many examples, especially in the 

 counties of Zolyom and Lomor. But no where do these mo- 

 dern deposits form in considerable masses, which may perhaps 

 be owing to this, that, being always rather soft, they crumble 

 down after they have arrived at a, certain height. We are so 

 much the more induced to form this idea, that we often find 

 pretty large detached blocks, more or less broken, on the decli- 

 vity of the mountains, or in the bottom of valleys, and that it is 

 rare to find, in situ, masses of greater size. One of the best 

 points which I know in Hungary for verifying these observa- 

 tions, is the route from Neusohe to Henengrund, keeping along 

 the declivity of the mountain. 



ART. VI. On the Use of Perfumes in preventing the Forma- 

 tion of Mouldiness. By JOHN MACCULLOCH, M. D. and 

 F. R. S. Sec. Communicated by the Author. 



JL HERE are many cases of daily occurrence, in which the 

 growth of those minute vegetables that constitute mouldiness, is 

 a very troublesome inconvenience. As your Journal does not 

 despise the useful, I need make no apology for a communication 

 that has no other quality to recommend it. 



I do not pretend to account for the mode in which perfumes 

 act in producing this effect ; nor do I know the limitations with 

 respect to these : but I have found it hold good with all the es- 



VOL, VIIT. NO. 15. JAN. 1823. c 



