282 Proceedings of the Royal Institution. 
Chemical Science to the elucidation of Vegetable Physiology. By 
W.T. Brande, Esq., F.R.S., and Prof. Chem. R.I. 
The following are such of the Prospectuses of these Lectures, as 
have been published ; 
Prospectus or Mr. Branve’s Lectures on ELECTRICITY. 
Lecture I. Saturday, February 7. 
History of Electricity, with experimental Illustrations. Account 
of the electrical and magnetical Discoveries of Dr. Gilbert. Re- 
searches of Wall, Hauksbee, Grey, Wheeler, and Watson. Theories 
of Electricity. Galvani’s Experiments. Volta’s Inquiries. Sketch 
of Sir H. Davy’s Discoveries in relation to this subject, and of their 
influence upon the progress of electrical and chemical Science. 
CErsted discovers the electrical production of Magnetism. 
Lecture Il. February 14. 
An inquiry into the present state of the Theory of Electricity. 
Imperfection of all the hypotheses. Of the validity of Coulomb’s 
Deductions. Phenomena of attraction and repulsion exhibited and 
explained in reference to the hypotheses of Du Fay, and of Franklin. 
Of Electroscopes and Electrometers. Investigations of Zpinus, Of 
Conductors and Nonconductors. History of the Electrical Machine— 
its various constructions, and their respective advantages. Analogies 
between the phenomena of Electrical and of Magnetic Attraction. 
Lecture III. February 21. 
Of the luminous appearances connected with Electrical Excitation. 
Electric Spark in various media. Electrified Points. Of induced 
Electricity, and of the Phenomena exhibited by Conductors of vari- 
ous kinds when under the influence of electrical induction. Of the 
Electro-Polar State. Of the causes of the accumulation and dis- 
charge of Electricity. Extensive Induction exhibited in the spiral 
tube and Juminous words. Induction through air, glass, mica, lac, 
other media. 
Lecture IV. February 28. 
On the construction and theory of the Leyden Phial. Dr. Frank- 
