TO 
THE RIGHT HONORABLE G. J. GOSCHEN, M.P., 
UNDER WHOSE ADMINISTRATION, 
AS FIRST LORD OF THE ADMIRALTY, 
‘ 
THE ‘‘ CHALLENGER” EXPEDITION WAS ORGANIZED, 
THESE VOLUMES ARE 
Respectfully Dedicated, 
AS A MARK OF WARM APPRECIATION OF THE EFFECTIVE INTEREST 
WHICH HE HAS TAKEN IN THE ADVANCEMENT OF SCIENCE, 
AND OF SCIENTIFIC INSTRUCTION IN THE NAVY. 
