xii Proceedings. {December i4.th^ iSgj. 



Ordinary Meeting, December 14th, 1897. 

 James Cosmo Melvill, M.A., F.L.S., President, in the Chair. 



The thanks of the members were voted to the donors of the 

 books upon the table. 



Professor Osborne Reynolds, F.R.S., and Mr. William 

 Henry MooRBY, B.Sc.,gave an account of the methods, appliances 

 and limits of error in the experimental determination of the work 

 expended in raising the temperature of ice-cold water to that of 

 boiling water, which they had used in the investigation " On 

 the Mechanical Equivalent of Heat," which constituted 

 the Bakerian Lecture before the Royal Society in 1897 ; and 

 they also shewed lantern illustrations of the engines and apparatus 

 designed for the purpose. 



An abstract of this paper will be printed in the Memoirs. 



The President read a paper, entitled : — "Further investi- 

 gations into the MoUuscan Fauna of the Arabian 

 Sea and the Persian Gulf." 



This paper will be printed in full in the Memoirs, 



Mr, Charles H. Lees, D.Sc, read a paper, entitled: — "A 

 Method of Determining the Thermal Conductivities 

 of Salts." 



This paper will be printed in full in the Memoirs. 



