CONTENTS. Report of the Secretary, Professor Henry, for 1868.... REPORT OF THE SECRETARY. Resolutions of Congress ordering report to be printed.......... Letter of the Secretary to Congress.. Letter of the Chancellor and Secretary, submitting report for 1868... Members, cx officio, and honorary members of the Institution... Report of the Assistant Secretary, Professor Baird, for 1868.. Page. 234 5 6 7 12 54 List of Smithsonian meteorological stations and observers in North America and adja- 68 86 Meteorological material contributed in addition to the regular observations, during the year 1868..... Notice of Christian Frederic Schoenbein, the discoverer of Ozone.... Recent progress in relation to the theory of heat, by A. Cazin.............. 231 Principles of the mechanical theory of heat, by Dr. John Muller...... 245 Continuous vibratory movement of all matter, ponderable and imponderable, by L. Magrini..... 281 Radiation, by John Tyndall.... 292 Synthetic experiments relative to meteorites, approximations to which these experiments lead, by M. Daubrée.... 312 Catalogue of meteorites in the mineralogical collection of Yale College... 342 345 350 354 Report on the transactions of the Society of Physics and Natural History of Geneva, from June, 1867, to June, 1868, by Professor Eliè Wartmann.. 364 History of the transactions of the Anthropological Society of Paris, from 1865 to 1867, by M. Paul Broca...... 376 Drilling in stone without metal. By Chas. Rau..... 392 A deposit of agricultural flint implements in southern Illinois. By Chas. Rau....... List of publications of the Smithsonian Institution up to end of 1868, with systematic Page. 401 408 414 419 422 426 429 Mechanical equivalent of heat, Fig. 8. Elements of the mechanical theory of heat, Fig. 9.... Application of the mechanical theory of heat to aqueous vapors, Fig. 10. Melting of ice, Fig. 13..... 253 260 263 266 271 273 Melting of ice, Fig. 18. Radiation, (one cut). Drilling in stone without metal, Fig. 1.. Drilling in stone without metal, Fig. 3.. ... 274 299 393 393 393 394 395 395 396 397 398 399 399 Agricultural flint implements in southern Illinois, (plan of locality)... 403 404 405 |