29 



Column 3 (t) contains the observed temperatures. 



Column 4 (s) contains the determined salinity. 



Column 5 (dt) contains the density as found directly from the tem- 

 perature and the salinity. (Contraction adopted, see p. 2.) 



Column 6 (Table III) is a form of inversion table combined with 

 other corrections (seep. 18). 



Column 7 (Table IV) contains the combined corrections with due 

 regard to signs for the three factors, pressure with depth, with tem- 

 perature, and with salinity (see p. 19). 



Column 8, contains the values of (1 — v) 10 ^ where v represents the 

 specific volumes in situ. 



Column 9, contains the mean values between the successive depths 

 of observation as they appear in column 8. 



Column 10, contains the product of the values as contained in col- 

 umn 9 and the difference of pressure in decibars as shown by column 1 . 



Column 1 1 (Sa) contains the results obtained by adding progres- 

 sively the successive ciphers as contained in column 10. Values from 

 columns 6 to 11, inclusive, are negative throughout. 



Column 12 (E) contains the calculation of the dynamic depths of 

 the observed isobaric surfaces. Found by combining values in col- 

 umn 2 with those in column 11. 



Column 13 (E — Ei) 10^ contains the anomaly of the dynamic depth 

 of observation — i. e., it represents the difference in dynamic depth 

 between the isobaric surface actually observed and the position of the 

 same isobaric surface in a sea of 0.0° C. and 35 per mille salinity. 



Column 14 (V) 10^ contains the specific volume in situ, or one 

 minus the value as contained in column 8 multiplied by 10^. 



Column 15 (V — Vi) 10'^ contains the anomaly of specific volume in 

 situ, or, in other words, the difference in specific volume in situ as 

 found from that at a similar depth in a sea of zero degrees Centrigrade 

 and 35 per mille salinity. The values for the dynamic depth (Di) and 

 the specific volume in situ, (Vi) , as found in an ocean of zero degrees 

 Centigrade and 35 per mille salinity, are given in the following table, 

 Table V. The selected depths recorded therein are the same as those 

 previously carried in Table IV. 



Table V* 



El = dynamic depth in sea 0° C, 35 per mille. Vi = specific volume 

 in sea 0° C, 35 per mille. 



* Tlie values shown are based upon those contained in Table 8H, Bjerknes' " Dynamic Meteorology and 

 Hydrography," Carnegie Inst. Pub., 1910. 



