CONTENTS. 



XVII. A Defcripiion of an Air-pump of a new Conjirudion, 

 ■with an Account of its Performance, and of fame Experiments 

 and Obfervations tending to afcertain the Circuvijlances on which 

 the Perfe£lion of that Machine depends, and to render its 

 Theory more compleat. By the Rev. fames Little, of Lacken, 



in the County of Mayo . _ . . . Pa^e 3 1 9 



XVIII. On the Application of a Converging Series to the Con- 

 flruilion of Logarithms. ' By Mr. William Allmau, A. B. 



Trinity College, Dublin - - - - ogi 



XIX. Synoptical View of the State of the Weather at Dublin in 

 the Tear 1797. By Richard Kirwan, Efq; L. L D. F. R. S. 



and M.R.L A. . - - - . 435 



