VIII. Description of the Marine Telescope. By JOHN ADIE, F.R.S.E., F.R.S.S.A. Communicated by the Author, 117
IX. Experimental Investigations to Discover the Cause of the Change which takes place in the Standard Points of Thermometers. By JOHN ADIE, F.R.S.E., F.R.S.S.A. Communicated by the Author, 122
X. Observations on the Discovery, by Professor Lepsius, of Sculptured Marks on Rocks in the Nile Valley in Nubia; indicating that, within the historical period, the river had flowed at a higher level than has been known in Modern Times. By LEONARD HORNER, Esq., F.R.S.S. L. & E., F.G.S., &c. Communicated by the Author. With a Plate, 126
XI. On the Salmon Tribe (Salmonidæ); their Classification, Geographical Distribution, &c., 144
XII. Results of Observations made by the Rev. F. FALLOWS, at the Cape of Good Hope, in the years 1849-30-31. Produced under the superintendence of G. B. Airy, Esq., Astronomer Royal, 148
XIII. Discovery of the Great Lake "Ngami" of South Africa, 150
XIV. DR DAVY'S Brief Sketch of the Geology of the West Indies. Communicated for the Philosophical Journal, 158
XV. On the Differences between Progressive, Embryonic, and Prophetic Types in the Succession of Organized Beings through the whole range of Geological times, 160
XVI. On a New Analogy in the Periods of Rotation of the Primary Planets discovered by DANIEL KIRKWOOD of Pottsville, Pennsylvania, 165
1. Use of Coloured Glasses to assist the View in Fogs. 2. Ozone, 170-171
3. On the Phenomena of the Rise and Fall of the Waters of the Northern Lakes of America. 4. Water Thermometer. 5. On the Falls of Niagara. 6. On the Existence of Manganese in Water. 7. Arsenic in Chalybeate Springs, 172-175
8. The Coal Formation of America. 9. River Terraces of the Connecticut Valley, 175-177
10. Fossil Crinoids of the United States. 11. Discovery of Coral Animals on the Coast of Massachusetts. 12. On the Circulation and Digestion of the Lower Animals. 13. Distribution of the Testaceous Mollusca of Jamaica. 14. Metamorphoses of the Lepidoptera. 15. On the Zoological Character of Young Mammalia. 16. The Manatus or Sea Cow, the Embryonic Type of the Pachydermata. 17. Fossil Elephant and Mastodon from Africa. 18. Cauterization in the case of Poisonous Bites. 19. Dental Parasites, 177-184