APPENDIX II 



199 



(c) Temperatures. 

 F- 32 = (' = A> 

 9 "54' 



(d) Velocities. 



APPENDIX II 

 BIBLIOGRAPHY 



THE Government of the United States first proposed a uniform 

 system of observations at sea at a conference held at Brussels 

 in 1853, which was attended by representatives of the leading 

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

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

 in force, with slight alterations in 1873, to the present day. 



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

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

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

 temperature, specific gravity, waves their direction and 

 strength. Many millions of these log-books, from all the seas 

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

 of the different Governments which have a large mercantile 

 marine. 



Considerable research into oceanographical conditions can 

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

 portant publications have resulted from a study of thesr and 

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



