Archive image from page 16 of The depths of the sea;. The depths of the sea; an account of the general results of the dredging cruises of SS. 'Porcupine' and 'Lightning' during the summers of 1868, 1869 and 1870, under the scientific direction of Dr. Carpenter, J. Gwyn Jeffreys, and Dr. Wyville Thomson depthsofseaaccou02thom Year: 1874 libra: CONTEXTS. CHAPTER I. INTRODUCTION. The Qluestion of a Bathyiuetrical Limit to Life.—The general Laws which regulate the Geogi'aphical Distribution of Living Beings.—Professor Edward Forbes' Investigations and Views.—Specific Centres.—Eepre- sent
Archive image from page 16 of The depths of the sea;. The depths of the sea; an account of the general results of the dredging cruises of SS. 'Porcupine' and 'Lightning' during the summers of 1868, 1869 and 1870, under the scientific direction of Dr. Carpenter, J. Gwyn Jeffreys, and Dr. Wyville Thomson depthsofseaaccou02thom Year: 1874 libra: CONTEXTS. CHAPTER I. INTRODUCTION. The Qluestion of a Bathyiuetrical Limit to Life.—The general Laws which regulate the Geogi'aphical Distribution of Living Beings.—Professor Edward Forbes' Investigations and Views.—Specific Centres.—Eepre- sentative Species.—Zoological Provinces.—Bearings of a Doctrine of Evolution upon the Idea of a ' Species,' and of the Laws of Distribution. —The Circumstances most likely to affect Life at great Depths : Pres- sure, Temjierature, and Absence of Light Pcfjc 1 CHAPTER II. THE CRUISK OF THE 'LIGHTNING.' Proposal to the Conditions of the Bottom of the Sea.—Sugges- tions and Anticipations—Correspondence between the Council of the Royal Society and the Admiralty.—Departure from Stornoway.—The Fieroe Islands. —Singular Temperature Results in the F>«roe -Channel.— Life abundant at all Depths.—Brisinga coronata.—Holtenia carpentcri. —General Results of the Expedition .... Page 49 Appendix A.—Particulars of Depth, Temperature, and Position at the various Dredging Stations of Lightning,' in the Summer of 1868 ; the Temperatures corrected for Pressure Page S\ CHAPTER III. THE CRUISES OF THE ' PORCUPINE.' The Equipment of the Vessel.—The first Cruise, under the direction of Mr. Gwyn Jeffreys, off the West Coast of Ireland and in the Channel between Scotland and Rnckall.—Dredging carried down to fathoms.
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