152 



WEIBEL AND THURASI RECORDING SALINITY 



tus previously used.^ The recorder will be properly secured in 

 a convenient place on the vessel and insulated wires will lead 

 from it to the cells. The cells (see fig. 3) will be mounted close 

 together in a bath through which water direct from the ocean 

 will flow continuously. This will insure a uniform temperature 

 throughout the bath. A flow of water will also be maintained 



f leads to the 



cell 

 c/ischatge 



Sea wafer 

 intake 



Plan view 



bath 

 Fig. 3. 



End vievi 



through the open cell, this water being tapped off from the main 

 supply which passes through the bath. This flow must be broken 

 as it leaves the cell in order to eliminate the resistance error 

 due to shunting the open cell. The bath and connections to 

 the sea-water supply will be carefully covered with heat in- 

 sulating material to insure a uniform temperature throughout. 



5 Treasury Dept., U. S. Coast Guard Bull. 5: 27. 1915. 



