CONTENTS.
I. The Croonian Lecture on the Arrangement and mechanical Action of the Muscles of Fishes. By Anthony Carlisle, Esq, F.R.S. F.L.S.page 1
II. The Bakerian Lecture on the Force of Percussion. By William Hyde Wollaston, M.D. Sec. R.S.p. 13
III. Mémoire sur les Quantités imaginaires. Par M. Buée, Communicated by William Morgan, Esq. F.R.S.p. 23
IV. Chemical Experiments on Guaiacum. By Mr. William Brande. Communicated by Gharies Hatchett, Esq. F.R.S. p. 89
V. On the Direction of the Radicle and Germen during the Vegetation of Seeds. By Thomas Andrew Knight, Esq. F.R.S. In letter to the Right Hon. Sir Joseph Banks, K.B. P.R.S.p. 99
VI. A third Series of Experiments on an artificial Substance, which possesses the principal characteristic Properties of Tannin; with some Remarks on Coal. By Charles Hatchett, Esq. F.R.S.p. 109
VII. The Application of a Method of Differences to the Species of Series whose Sums are obtained by Mr. Landen, by the Help of impossible Quantities. By Mr. Benjamin Gompertz. Communicated by the Rev. Nevil Maskelyne, D.D. Astronomer Royal, F.R.S.p. 147
