COND ENTS. 
CHAPTER I. 
THE EQUIPMENT OF THE SHIP. 
The Causes which led to the Dispatch of the Challenger Expedition.—The Staff of 
Officers, Naval and Civilian—The Special Arrangements for Scientific Work.— 
The Natural History Work-room.—The Chemical Laboratory.—The Apparatus 
for boiling out the Gases from Sea-water; for determining the Carbonic Acid ; 
for Gas Analysis.—The “Slip”? Water-bottle-—“ Buchanan’s” Stop-cock Water- 
bottle.—The Hydraulic Pressure-gauge.—The “ Baillie” Sounding-machine.—The 
“Valve” Sounding-machine.—Improvements in the Dredge, and in the Mode of 
nandlincnt—— The steam-pinMac@ aries stlayecists ceiatere cesses isvalsaiers ea sto Page 17 
AppenpIx A.—Official Correspondence with Reference to the Challenger Expedition, 
extracted from the Minutes of Council of the Royal Society............... 73 
AppENDIx B.—List of the Stations in the Atlantic at which Observations were taken 
PETES TOT CAE OO deh m toy ret u6 toro. js, ica ate aps adept! in emt alaeeeyto le esal so. qe-opogists LOG, 
CHAPTER IL. 
FROM PORTSMOUTH TO TENERIFFE. 
Departure from England.—Rough Weather in the Channel.—Lisbon.—Trawling in 
Deep Water.—Deep-water Fishes.—Surface Animals.— Gibraltar.— Cystosoma 
Neptuni.—Venus’s Flower-basket.— Naresia cyathus. —“ Clustered Sea-polyp.” 
—Madeira.—Temperature Observations. — Meteorological Observations. —Ten- 
Ree ee er etl Bee iy ee teeta hes Sci thei winhaniatantaee meal maleate ee 112 
AppenDIx A.—Particulars of Depth, Temperature, and Position at the Sounding Sta- 
tions between Portsmouth and Teneriffe; the Temperatures corrected for Press- 
WIRES coop om ep CO ob a BORD ODO So ANNO Oe OS DOS oo GENE oD so eDE Gon Oa SUH OUNOOS 160 
AppENDIX B.—Comparative Table of the Indications of ‘“‘Stevenson’s Mean Ther- 
mometers,” and the ordinary Maximum and Minimum Thermometers in Air, for 
the Six Months from the 1st of May to the 31st of October, 1873 .......... 162 
CHAPTER III. 
TENERIFFE TO SOMBRERO. 
The First Deep-sea Section.—Leiosoma limicolum.—A Grove of Deep-sea Coral.— 
Poliopogen Amadou,—Red Clay.—Phosphorescence.—Surface Fauna.—Blind Crus- 
taceans.—Fishes’ Nests.—The Paucity of the Higher Forms of Life.—Deep-sea 
