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690 LECTURE LX. 



the general introduction of philosophical studies, and from the adoption 

 of the practical improvements depending on them, will amply repay the 

 labours of those, who have been active in the establishment and support 

 of associations so truly laudable. 



LECT. LX. ADDITIONAL AUTHORITIES. 



History of Electricity. Hausen, Novi Perfectus in Hist. Electr. 4to, Leipz. 

 1734. Gralath, Geschichte der Elektr. Abhand der Natur. Gesellsch. in Danzig, 

 1747, i. 23. Hist. Generate et Particuliere de 1'Electr. Paris, 1752. Dalibard, do. 

 abrege*e, 2 vols. 1766. Priestley's Hist, of Electr. with Original Experiments, 4to, 

 1764 ; Additions, 4to, 1770. Kriinitz, VerzeichnissderVornehmsten Schriften von 

 der Elektr. Leipz. 1769. German trans, of Priestley, 4to, fieri. 1772. Kiibu, 

 Geschichte der Medicinischen und Phys. Elektr. 2 vols. Leipz. 1783 and 1796. 

 Eyewater, Essay on the Hist, of Electr. 1810. De la Rive, Esquisse Histor. des 

 Principals Decouvertes faites dans 1'Electr. depuis quelques Annees, Geneve, 1833. 

 Ann. de 1'Electr. i. 1. Wartmann, ibid. i. 31. 



Galvanism. Ritter, Beitrage zur Nahern Kenntniss des Galv. Jena, 1800-5. 

 Sue", Hist, der Galv. 4 vols. Paris, 1802-5. Tromsdorff, Geschichte des Galv. 

 Erfurt, 1808. Bostock's Hist, of Galv. 1818. 



