FERGUSON (J). AN INTRODUCTION TO ELECTRICITY IN SIX SECTIONS. London,Strahan, 1770. In-8 de [4]-140 pages, veau fauve (rel. de l'époque). EDITION ORIGINALE ornée de 3 planches gravées dépliantes. I. Of Electricity in General. II. A Description of the Electrical Machine. III. A Description of the Apparatus for Making Electrical Experiments. IV. How to know if the Machine be in good Order for performing the Experiment, and How to put it in Order if it be not. V. How to Make the Electrical Experiments, and to Preserve Buildings from Damage by Lightning. VI. Medical Electricity. Plats détachés et un cahier dérelié.