CONTENTS. 



PA<JB 



Annual Report . . . . . . . . . . . . 1 



List of Donations, presented in 1881-82 .. .. .. .. 5 



Presidential Address : A Historical Sketch of the Society, by R. L. 



Patterson, Esq. . . . . . . . . . . . . 12 



Reminiscences of the Paris Electrical Exhibition and Congress, by 



Professor Everett . . . . . . . . . . . . 37 



The Rainy or Post- Glacial Period, by Joseph John Murphy, Esq. . . 54 



The Diamond, by Professor Letts . . . . . . . . 58 



Corals and Coral Islands, by Professor Cunningham . . . . 67 



Island Life, by A. R. Wallace, Esq. (Title only) . . . . . . 72 



Notes on Bun-a-Mairge and its Surroundings, by Robert Young, Esq. . . 73 

 Linkages : A Recent Mechanical Invention by M. Peaucellier, by Isaac 



J. Murphy, Esq. . . . . . . . . . . . . 75 



(Diagrams to illustrate the foregoing paper.) 



Forts, Houses, and Churches of Ancient Ireland, by Rev. R. "Workman 81 



List of Office-Bearers and Shareholders . . . . . . . . 87 



