Page:The Depths of the Sea - Wyville - 1873.djvu/23

Rh The Dredger's Note-book.—The Dredging Committee of the British Association.—Dredging on the Coast of Britain. — Dredging abroad.—History of the Progress of Knowledge of the Abyssal Fauna.

Appendix A.—One of the Dredging Papers issued by the British Association Committee, filled up by Mr. MacAndrew

CHAPTER VII. DEEP-SEA TEMPERATURES.

Ocean Currents and their general Effects on Climate.—Determination of Surface Temperatures.—Deep-sea Thermometers.—The ordinary Self-registering Thermometer on Six's principle.—The Miller-Casella modification.—The Temperature Observations taken during the Three Cruises of H.M.S. 'Porcupine' in the year 1869, etc.

Appendix A.—Surface Temperatures observed on board H.M.S. 'Porcupine' during the Summers of 1869 and 1870

Appendix B.—Temperature of the Sea at different Depths near the Eastern Margin of the North Atlantic Basin, as ascertained by Serial and by Bottom Soundings

Appendix C.—Comparative Rates of Reduction of Temperature with Increase of Depth at Three Stations in different Latitudes, all of them on the Eastern Margin of the Atlantic Basin

Appendix D.—Temperature of the Sea at different Depths in the Warm and Cold Areas lying between the North of Scotland, the Shetland Islands, and the Fæ̈roe Islands; as ascertained by Serial and by Bottom Soundings

Appendix R — Intermediate Bottom Temperatures showing the Intermixture of Warm and Cold Currents on the Borders of the Warm and Cold Areas

CHAPTER VIII. THE GULF-STREAM. The Range of the 'Porcupine' Temperature Observations.—Low Temperatures universal at great Depths.—The Difficulty of investigating Ocean Currents.—The Doctrine of a general Oceanic Circulation advocated by Captain Maury and by Dr. Carpenter.—Opinion expressed by Sir John Herschel.—The Origin and Extension of the Gulf-stream.—The Views of Captain Maury; of Professor Buff; of Dr. Carpenter.—The Gulf-stream off the Coast of North America.—Professor Bache's 'Sections.'—The Gulf-stream traced by the Surface Temperatures of the North Atlantic.—Mr. Findlay's Views.—Dr. Petermann's Temperature Charts.—Sources of