168 



together, I cannot doubt that this rust is the cause of 

 the injury complained of. We know that peroxide of iron 

 stands on or near the verge which separates bases from 

 acids, but so decisive an action of this substance on another 

 metal is not, that I know of, elsewhere recorded. Nor 

 have I been able to hear, from plumbers of whom I have 

 inquired, of lead having been thus observed to be corroded 

 into holes. 



I suggested for trial, by way of remedy, passing lime 

 water through the iron pipe, in the hope of coating the iron 

 with carbonate of lime, and thus preventing the formation of 

 rust ; this was tried, and for a time with some appearance of 

 success, but the rust soon returned, and with it the corrosion; 

 it only remained, therefore, to recommend coating the cis- 

 terns either with paint or cement. 



Mr. Lucas, of Sheffield, read a Paper, describing the 

 Action of the Atmospheric Railway between Kingstown and 

 Dalkey. 



Mr. Hartop read a Paper on Ventilation, and explained 

 the Principle of an Apparatus intended to promote the 

 proper Ventilation of Rooms. 



Mr. Hall exhibited the Portion of the Line of Section 

 allotted to him ; comprising the townships of Bretton West, 

 Crigglestone, Wortley, Notton, Roystone, Shafton, Brierley, 

 and Great Houghton, extending over a distance of upwards 

 of nine miles. 



The thanks of the Meeting were voted to the Authors of 

 the Papers, and to Mr. Hall. 



The Secretary read the following notice, which had been 

 laid upon the table, having received the signatures of ten 

 Members : — 



" At the next Quarterly Meeting of the Society it will be 



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