143 



SYNOPSIS. 



T3 



I. 



Page. 



EARLY CAREER: 18141826 206 



Communications to the Albany Institute : 1824, 1825 208 



State Appointment as a Civil Engineer : 1825 210 



Professorship of Mathematics at the Albany Academy: 1826 211 



ELECTRICAL RESEARCHES AT ALBANY : 1827 1832 212 



Great development of the "Quantity" Magnet: 18281831 216 



The first " Intensity " Magnet : 1829 1831 223 



The first Magnetic Telegraph : 1830, 1831 228 



The first Electro-magnet ic Engine : 1831 230 



Discovery of Magneto-Electricity : 1831, 1832 233 



Discovery of the "Extra Current :" 1832 237 



Professorship of Natural Philosophy at Princeton : 1832 238 



ELECTRICAL RESEARCHES AT PRINCETON : 1833 1842 238 



Electrical Self-induction : 1832 1835 239 



Combination of Circuits: 1835,1836 243 



Visit to Europe : 1837 244 



Discovery of Successive Orders of Electrical Induction : 1838 248 



Oscillation of Electrical Discharge : 1842 255 



INVESTIGATIONS IN GENERAL PHYSICS : 1830 1846 257 



Meteorology : 1830 1846 1 258 



Molecular Physics: 1839 1846 263 



Light andHeat: 1840 1845 267 



Miscellaneous Contributions : 1830 1844 270 



II. 



ADMINISTRATION OF THE SMITHSONIAN INSTITUTION : 1846 1878 274 



Meteorological Work: 1847 1870 286 



Archaeological Work: 1848 1877 290 



Editing of Smithsonian Publications : 1848 1877 293 



System of Scientific Exchanges : 1851 1878 298 



Astronomical Telegraphy : 18731878 300 



Official Correspondence : 1850 1878 301 



Loss by Fire: 1865 305 



Second Visit to Europe: 1870 307 



Services in improving the Light-House system : 1852 1877 308 



Services to the National Government : 1850 1877 316 



CONTRIBUTIONS TO SCIENCE AT WASHINGTON : 1850 1877 319 



Thermal Telescope : 1847. 1848 320 



Views of Education: 1853 323 



Experiments on Building-Stone : 1854 326 



Sulphuric-Acid Barometer: 1856 329 



Range of Information 332 



Theory of Organic Dynamics : 1844 1857 335 



Investigations in Acoustics : 1851 1877 343 



PERSONALITY AND CHARACTER 360 



LIST OF SCIENTIFIC PAPERS: 18281878 365 



SUPPLEMENTARY NOTES : A N . . 375 



