pp. viii, 182, (iv), 183 - 369, (vii) of index, 26. 4to. Babbage's article is 'Observations on the Analogy which subsists between the Calculus of Functions and other branches of Analysis'; Herschel - 'Astronomical observations and experiments tending to investigate the local arrangements of the celestial bodies in space, and to determine the extent and condition of the Milky Wa'; Davy - 'Some researches on flame' & 'Some new experiments and observations on the combustion of gaseous mixtures, withan account of a method of preserving a continued light in mixtures of inflammable gases and air without flame'.