viii CONTENTS. 



SUPPLEMENT TO VOL. XXIII. 



I. The Bakerian Lecture. An Account of some New analytical Researches oil 

 the Nature of certain Bodies, &c. By Humphry Davy, Esq., Sec. R. Si 

 F.R.S. andM.R. I. A. 321 



II. On the Stem of Trees ; with an Attempt to discover the Cause of Motion 

 in Plants. By Mrs. Agnes ibbetson. - 334 



III. On the supposed Perspiration of Plants. By Mrs. Agnes Ibbetson. 351 



IV. A numerical Table of elective Attractions; with Remarks on the Sequences 

 of double Decompositions; By Thomas Young, M. D. For. Sec. R. S. 354 



V. Experiments on Sulphur and its Decomposition ; by Mr. Curaudau, Professor 

 of Chemistry applicable to the Arts, and Member of several learned Societies. 



305 



VI. Experiments in Continuation of those on the Decomposition of Sulphur ; 

 by the Same - - - - - -369 



VII. On the Camera Lucida. In a Letter from Mr. T. Sheldrake, with Remarks 

 by W. N. - - - - - 372 



VIII. Remarks on some of the Definitions and Axioms in Barrow's Euclid. In 

 a Letter from William Saint, Esq. - 377 



IX. Account of a new Acid, obtained from Ginger. In a Letter from a Cor- 

 respondent. - - - - - -384 



