CONTENTS 



Introduction page 231 



Errors and eccentricities . . .232 



Calibration and certification of deep-sea reversing thermometera . . 233 



Protected Thermometers 236 



Change with age in the zero point and scale corrections .... 236 



Effect of the volume of mercury (F„) ....... 237 



Incidence of failures 239 



Unprotected Deep-Sea Reversing Thermometers 240 



Zero point ............ 240 



Mean pressure coefficient ('Q') 244 



Summary 242 



References 244 



