102 BULLETIN OF THE BUREAU OF FISHERIES. 
to claim attention and to make good its claim. It is far easier to prove that the 
lives or property of fishermen are in danger than it is to establish any connec- 
tion between the fishing operations of the fishing fleets and the fluctuations in 
the yield of the fisheries, especially in the deep seas; and, as a preliminary to 
any effective steps for the protection of the fisheries on the high seas by way of 
international regulations, it will be found necessary to provide for international 
agreement as to the nature and extent of the statistical records to be kept and 
as to the method and scope of research into those natural phenomena which 
affect the productiveness of such fisheries more extensively than the combined 
operations of all the fishing fleets. 
