In the study of the homogeneous layer in the ocean, Rossby1 found it desirable to have an instrument which would provide a continuous record of temperature against pressure in the surface layers of the ocean. A preliminary instrument named an "oceanograph" was constructed and used during the summer of 1934. The manifold uses to which such an instrument could be put presaged a widespread employm…
Corrections have to be applied to the readings of protected and unprotected reversing thermometers because they are read at a temp erature that differs from that at the time of reversal. In deriving these corrections it is generally assumed that Feruglio’s (1912) equa tion [(5) below] is exact. It is shown here that Feruglio’s equation is not quite exact, but a close approximation. Fro…