CONTENTS. 



CHAP. I. 

 Historical Sketch: WaJsh; Galvani ; Volta ; Humboldt; VassaJi 

 Eaudi; Wollaston; Nobili; Matteucci; Du Bois Eeymond. p.I 



CHAP. II. 



Of the Force OTolved diiring Chemical Action: First, in the 



Voltaic Circle ; Secondly, in the reaction of different Solutions 



upon each other. — Of Differential Currents. — Of Combined 



Currents. — The Force, a Polar Force, and its definition. 12 



CHAP. in. 

 Galvanometer. Precautions to be observed. . . 21 



CHAP. IV. 

 On the Manifestation of Current Force during the Organic 

 Process of Secretion in the living or recenily-Idlled Animal : 

 in the Stomach and Intestines; the Liver; the Kidney; the 



Mammary Gland ; the Lungs 25 



Seoi. I. During the formation of the Secretions in the 

 Mucous Membrane of the Alimentary Canal, viz. 

 the Stomach and Intestines. ... 28 



Sect. H. During Biliary Secretion. ... 37 



Sect. III. During Urinary Secretion. . . 41 



Sect. IV. During Mammary Secretion. . . 44 



Sect. V. During Bespiration. ... 46 



CHAP. V. 

 On the Manifestation of Current Force during Lacteal Ab- 

 sorption ■ . . 56 



CHAP. VI. 



On the Manifestation of Current Force during Nutrition. In 



the Muscular Tissue. lii the Nervous Tissue. . 61 



Sect. I. During Nutrition in the Muscular Tissue. 61 



Sect. H. During Nutrition in the Nervous Tissue. 68 



