APPENDIX II 20I 



Catalogue of Admiralty Charts, Plans, and Sailing 

 Directions, 1920. (Revised annually.) London : Wyman 

 and Sons. 



Reports of Voyages of Exploring Vessels, etc. 



"Three Cruises of the Blake," by Alexander Agassiz. 

 Bulletin Mus. Comp. Zool., vol. xiv. Cambridge, Mass., 

 U.S.A. 1888. 



Challenger Reports : " Narrative of the Cruise, Deep-Sea 

 Deposits, Oceanic Circulation, and Summarv of Results." 

 1885-1895. 



Report on Norwegian Fishery and Marine Investigations. 

 Helland-Hansen and Nansen. Bergen. 1909. 



There are, of course, many others. The above serve as 

 useful types for an introduction to the subject. 



The Challenger Society (Secretary, Mr. Tate Regan, 

 F.R.S., Natural History Muséum, South Kensington, 

 London, S.W.) publishes charts and books of interest to 

 oceanographers . 



Tides. 



In many respects this is the most difïicult branch of the 

 subject. For the beginner a considération of the simpler 

 phenomena is sufficient. Further information may be 

 sought in — ■ 



Airy : " On Tides and Waves," in the Encyclopœdia 

 Metropolitana, vol. v. London, 1842. (The treatment is 

 mathematical.) 



Rollin A. Harris : " Manual of the Tides." U.S. Coast 

 and Geodetic Survey. (A vohmiinous work.) 



W. H. W'heeler : "A Practi(\'il Manual <»l Tide.s and 

 Waves." London, 190O. 



Biology of the Sea. 



"Conditions of Life in the Sea," by J. Johnstone. 

 Cambridge Biological Séries. 1908. 



