February 2yth, rpo6.] Proceedings. xv 



" That before every Annual Meeting the out-going Council 

 " shall prepare ballot papers containing the names of 

 " Members whom they have nominated for election into 

 " the Council and for the various Offices. These ballot 

 " papers to contain the names of five more Members 

 " than there are vacancies to be filled, due regard being 

 "taken that the various Literary and Philosophical 

 " interests of Manchester are adequately represented on 

 "the ballot papers. The President and Vice-Presidents 

 "shall, as far as possible, be selected for nomination 

 "from the out-going Members of Council. 



"A notice to be printed on the ballot papers 

 " pointing out that, while other names may be substituted 

 " for those nominated by the Council, the total number 

 " voted for must not exceed the number of vacancies, 

 "otherwise, the ballot paper will be considered void." 



Mr. Francis Nicholson, F.Z.S., presented to the Society's 

 Library the following works : — 



"Annals of Electricity, Magnetism, and Chemistry." Con- 

 ducted by William Sturgeon. Vols, i — 9. 1837 — 1842. 



"The Annals of Philosophical Discovery and Monthly 

 Reporter of the Progress of Practical Science." Con- 

 ducted by WilHam Sturgeon, i vol. 1843. 



Mr. R. F. GwYTHER, M.A., read a paper entitled, "On the 

 Range of Progressive Waves of Finite Amplitude in 

 Deep "Water." The paper was communicated by Professor 

 H. Lamb, LL.D., D.Sc, F.R.S. 



At this point the Chair was taken by Mr, Francis Nichol- 

 son, F.Z.S. 



Mr. A. D. Darbishire, M.A., B.Sc, read a paper entitled, 

 " On the Difference between Physiological and Statis- 

 tical Theories of Heredity." 



