IV CONTENTS. 



Page. 



XIV. Notice of Geological Surveys. I. Of the State of Ohio. 

 11. Of Indiana. III. Of Michigan; by Prof Oliver P. 



Hubbard, M. D., 126 



XV. The Daguerreotype and its Applications; by W. H. Goobe, 137 

 XVI. Supplementary Note to the Article on the Pneumatic Par- 

 adox in the last number of this Journal ; by Joseph Hale 

 Abbot, ......... 144 



XVII. Miscellaneous Observations on Insects, &c. ; by Dr. John 



T. Plummer, 146 



XVIII. On Terrestrial Magnetism; by Prof. John Locke, M. D., 149 

 XIX. Electrography or the Electrotype ; by the Junior Editor, 157 

 XX. Bibliographical notices : — Report on the Tea Plant of Up- 

 per Assam, 165. — Report of M. Guillemin, 167. — The 

 Spiritual Life of Plants, 170. — The Journal of Botany, 

 &c., 172. — Hooker's Flora Boreali-Americana, or the Bo- 

 tany of the Northern parts of British America, 173. — End- 

 licher's Genera Plantarum : Enumeratio Chenopodearura : 

 Stendel's Nomenclator Botanicus : Caricography : Fossil 

 Infusoria in England, 174. — Chemical composition of cel- 

 lular and woody tissue in Plants, 176. — Organic Chemis- 

 try in its applications to Agriculture and Physiology, 177. — 

 Report on the Geological and Agricultural Survey of the 

 State of Rhode Island in 1839, 182.— History of Embalm- 

 ing and of Preparations in Anatomy, Pathology, and Natu- 

 ral History, including an account of a new process for Em- 

 balming, 191. — A General Outline of the Animal King- 

 dom : Boston Journal of Natural History, 196. — Supple- 

 ment to the introduction to the Atomic Theory, 197. 



Miscellanies. — Horticultural Experiments, 197. — Volcanic Ash- 

 es, 198.— African Meteorite of Cold Bokkeveld, 199.— Fur- 

 ther account of the Shooting Stars of August, 1840, 201. — 

 Meteors of November, 202. — Meteoric Observations in Octo- 

 ber and December, 1840, 203. — Meteorological Notes in 1741- 

 1757, 204.— Galle's Three Comets : New Comet : Manufac- 

 ture of Glass for Optical Instruments, 207. — Parasite of the 

 eggs of the Geometra vernata, 211. — Circular of the Royal 

 Society of Northern Antiquaries, 212. — Level of the Dead 

 Sea: Preservation of Timber : Preservation of Timber long 

 sunken under water, 213. — New process for making Sulphu- 

 ric Acid, 214. — Oxalic Ether with Chlorine : Elaterite, or Fos- 



