Minutes of Proceedings. 157 



Sir Samuel Ferguson requested A. G. Richey, Esq., v. p., to take 

 the Chair, -when he read " !N"otes on some Traces of Irish Influences 

 at St. Gall and Bobhio." 



The Ballot being closed, the Scrutineers reported Mr. T. Hughes 

 Corry to be duly elected a Member. 



The Secretary read the list of Donations, and proposed that the 

 thanks of the Academy be accorded to the respective Donors. 



Monday Eyening, Janfaet 10, 1881, 

 SiK EoBEET Kane, ll.d., f.e.s., President, in the Chair. 



The Ballot was declared open, and Professor Casey and Rev. "Wm. 

 Eeynell were requested to act as Scrutineers. 



The Rev. Samuel Haughton, m.d., d.c.l., ll.d., f.e.s., Fellow of 

 Trinity College, and Professor of Geology in the University of Dublin, 

 read a Memoir, entitled " New Researches in Sun-heat and Terrestrial 

 Radiation." 



Paet I. contains the following results : — 



1. Complete expressions for the Sun-heat, received daily and 

 yearly, at any place, on the supposition that the earth has no atmo- 

 sphere. 



2. These expressions show that the Sun-heat received at any place 

 is the sanie in the northern and southern hemispheres, when the lati- 

 tudes are the same. 



N.B. — This is true, whether the earth has an atmosphere or not. 



3. Complete expressions for terrestrial radiation at any place ; in- 

 cluding a secular periodic variation of climate, depending on the first 

 power of the eccentricity of the earth's orbit, and on the earth's peri- 

 helion longitude. 



[Ordered for the Transactions.'] 



A Paper " On Researches in Annual Parallax " was read by Pro- 

 fessor R, S. Ball, LL.D., F.E.S., Astronomer Royal. [Vide Proceedings^ 

 vol. iii., ser. ii., part 3.] 



n a 



