APPENDIX II 



199 



(c) Températures. 



F-3 2 ^C^R 



9 5 4" 



(d) Velocities. 



APPENDIX II 



BiBLIOGRAPHY 



The Government of the United States first proposed a uniform 

 System of observations at sea at a conférence held at Brussels 

 in 1853, which was attended by représentatives of the leading 

 maritime nations. A log"-book for vessels recording meteoro- 

 logical and other data was decided on, and this bas remained 

 in force, with slight altérations in 1873, to the présent day. 



This log contains, in addition to the daily position of the 

 ship, notes on the weather, such as direction and force of 

 wind, température of the air, barometric pressure, clouds, sea 

 température, spécifie gravity, waves — their direction and 

 strength. Many milHons of thèse log-books, from ail the seas 

 of the world, are now accumulated in the various central offices 

 of the différent Governments which hâve a large mercantile 

 marine. 



Considérable research into oceanographical conditions can 

 be carried on without going to sea, and, in fact, many im- 

 portant publications hâve resulted from a study of thèse and 

 similar journals. Much of this material has been utilised, and 



