Great improvements in the electrical apparatus have likewise been made since the time of Franklin; particularly in devising methods to increase the power of electricity, and to render sensible the slightest accumulation or deficiency of the electric fluid. We shall, however, content ourselves, in the conclusion, with only mentioning the electrophorus and condenser, invented by Mr. Alexander Volta, Professor of Experimental Philosophy at Como, &c. This last instrument is honorable to its inventor, not only on account of the extensively useful purposes to which it has been and may be applied; but, likewise, because it was discovered, not casually, like most of the electrical apparatus, but in consequence of scientific deduction and reasoning. * * * * * The origin of Galvanism is so recent, that we think it unnecessary to give any other history of it, than that which will be found connected with the article in the body of our work. CONTENTS OF THE EPITOME OF _ELECTRICITY_. DIVISION I. Chap. Page. I. _Explanation of terms; with some general remarks._ 1 II. _Electric substances; with some of the phenomena attending their excitation._ 3 III. _Of electrics and conductors._ 6 IV. _Of the electrical machine._ 9 V. _Of communicated electricity._ 15 VI. _Of the electric spark._ 16 VII. _Of the influence of pointed bodies on electricity, and some phenomena attending their operation._ 17 VIII. _Of electric attraction and repulsion._ 21 IX. _Of the Leyden phial._ 26 X. _Of the electrical battery, and experiments performed with it._ 28 XI. _Of the electrophorus, and some of its phenomena accounted for._ 33 XII. _Of electrometers._ 36 XIII. _The identity of electricity with lightning._ 40 XIV. _Of the structure and use of the electrical kite._ 41 XV. _The structure and use of lightning rods._ 48 XVI. _Of animal electricity._ 55 XVII. _The influence of electricity on vegetables._ 61 XVIII. _Medical electricity._ 63