CONTENTS, 



Volume I. 



PART I. (1824-1846.) 



Year. Page. 



Chemical and mechanical effects of steam . . . (1824) 1 



Refrigeration by rarefaction of air .... (1825) 1 



Lecture on flame ...... (1827) 2 



On some modifications of the electro-magnetic apparatus . (1827) 3 



Topographical sketch of the State of New York , . (1829) 8 

 On the application of the principle of the galvanic multiplier 



to electro-magnetic apparatus, &c. . . . (1831) 37 



Account of a large electro-magnet, made for Yale College . (1831) 50 

 On a reciprocating motion produced by magnetic attraction and 



repulsion. [An electro-magnetic engine.] . . (1831) 54 

 On a disturbance of the earth's magnetism, in connection with 



the appearance of an aurora-borealis . . . (1832) 58 

 The production of electrical currents and sparks from magne- 

 tism. [Magneto-electricity.] .... (1832) 73 



On electrical self-induction in a long helical wire . 79 

 Contributions to electricity. No. I. Description of a con- 

 vertible galvanic battery ..... (1835) 80 



Facts in reference to the spark, «fec., from a long conductor . (1835) 87 



On the action of a spiral conductor .... (1835) ' 89 



Contributions to electricity. No. II. On the influence of a 



spiral conductor in increasing electrical intensity, &c. . (1835) 92 



Notice of electrical researches : The lateral discharge . . (1837) 101 



On the lateral discharge of electricity .... (1838) 105 



Induction currents from ordinary electricity . . . (1838) 105 

 On induced currents from ordinary electricity . . . (1838) 106 

 Contributions to electricity. No. III. On electro-dynamic in- 

 duction ....... (1838) 108 



Sect. 1. Conditions which influence self-induction . Ill 



Sect. 2. Conditions which influence secondary currents 114 



Sect. 3. Induction of secondary currents at a distance . 119 



(V) 



