* 



FOURTEENTH MEETING. 



ROYAL INSTITUTION, Man \Wh. 1845. 



JOS. B, YATES, Esq., President, in the Chair. 



A pamphlet was presented to the Society hy the Rev. 

 Dr. Booth, " On a New Method of Converting Rectilinear 

 into Rotatory Motion, applied to the Steam Engine." 



Mr. Cunningham exhibited a section of the strata of this 

 neighbourhood, from Flintshire to Huyton inclusive, with 

 the view of proving that the theory noticed at the last meet- 

 ing — that the Mersey had, in former ages, discharged its 

 waters into the Dee, — was incorrect. Mr. Cunningham 

 supposed that the district between the Dee and Mersey had 

 been at one time entirely submerged, and afterwards elevated . 

 Mr. Gray exhibited some orthoceratites from the moun- 

 tains of Dumfriesshire, one of which was peculiar, having 

 the upper part of the shell perfect. 



In reference to a discussion of last session, Mr. Adie 

 stated that a friend of his had made some experiments on 

 the force of waves, both on the east and west coasts of Great 

 Britain. On the former, he found the force to be 3000 lbs. 

 on the square foot, and on the latter, 6000. 



Mr. Higginson read a communication recommending 

 the ventilation of sewers ; and pointing out facilities for 

 doing so, especially in maritime towns. 



Mr. Cunningham explained the method of producing a 

 vacuum for atmospheric railways, as patented by Messrs. 

 May and Nasmyth. The explanations were illustrated by 

 suitable drawings. 



