G O N T E N T S. 
A Synoptic Scale of Chemical Equivalents. By William Hyde 
Wollaston, M. D. Sec* R. S. p. i 
II. Methods of clearing Equations of quadratic, cubic, qiiadrato- 
cubic, and higher Surds. By William iVlIinm, M. D, Com- 
municated by the Right Hon, »S/r Joseph Banks, K. B. P. R.S. 
p. 23 
III. Analysis of a new Species of Copper Ore. By Thomas 
Thomson, M. D. F. R. S. L. and E. p. 45 
IV. The Bakerian Lecture : on some new Electro-chemical Phe- 
nomena. By William Thomas Brande, Esq. F. R. S. Prof. 
Chem. R. I. P- 51 
V. An Account of some new Experiments on the fluoric Compounds ; 
with some Observations on other Objects of Chemical Inquiry. 
By Sir H. Davy, LL. D. F. R. S. V. P. R. I. p. 62 
VI. Some Experiments and Observations on a new Substance which 
becomes a violet coloured Gas by Heat. By Sir Humphry 
Davy, LL. D. F. R. S. V. P. R. L p. 74 
VII. An Account of a Family having Hands and Feet with super- 
numerary Fingers and Toes. By Anthony Carlisle, Esq. 
F. R, S. In a Letter addressed to the Bight Hon. Sir Joseph 
Banks, Bart. K. B. P. R. S. p. 
VIII. Experiments and Observations on the influence of the Nerves 
of the eighth Pair on the Secretions of the Stomach. By B. C. 
Brodie, Esq. F. R. S. Communicated by the Society for the 
Promotion of Animal Chemistry. 
