28 
Where the isosteres lie deepest and the inclination is greatest, 
there is indicated at that place a tendency to push the water upwards 
with a maximum strength, and where the isosteres lie highest, there 
the force is at a maximum tending to drive the water downwards. 
But whatever the position of the isosteres may be, it is well to bear 
in mind that when the section lies at right angles to the direction of 
the current, there is no actual movement of the water particles within 
the vertical plane whatsoever. The value of the solenoids les in 
the fact that they express the presence of a force or forces tending to 
cause circulation around the rectangle. The Ferrelian force (effect 
of earth rotation) precludes actual movements restricted solely parallel 
to the current path AB, Figure 7, page 23, as previously described. 
DETERMINATION OF DYNAMIC DEPTH, STATIONS 205 AND 206 
We may continue to treat the Ice Patrol records of stations 201 to 
206 dynamically, by computing the values of specific volume from the 
given station data and correcting the same to specific volume in situ; 
then, by means of the equation on page 25, determine the dynamic 
depth of the successive isobaric surfaces of observation. In order 
simply to illustrate the methods customarily employed, we have 
selected two stations only, stations 205 and 206 located on the 
northern edge of the Gulf Stream south of Newfoundland. Similar 
procedure and similar results follow, of course, in like manner from 
other given station data. 
Meter Table| Table Mean|,,; _ (E— (Vv— 
OP lgepth| ¢ | § | de | a | av | = | 3, emp] 2 E | B)108| V2 | -viyr08 
STATION 205 
50} .0|.5-7| 38.93] 26.77| 2607) 01 2807550 | yair9s|---=--e- 0 -| 0 |.97393| 129 
5O| 50] 12.0) 35.31| 26.85] 2615] 22| 2637/2022 | 1381125\""731195) 48, 68875) . 06225] 97363] 121 
153] 125] 10.1) 35.16] 27.07] 2635] 53] 2aas/208?- 9) AaNG87) 330812/121. 60188) . 14676| 97312] 104 
22> 250] 6.7 35.00| 27.48} 2674| 109] 2783//3>- 2) 34788) g72750.243. 27250] . 25251] .97217/ 65 
200 450] 5.4! 35.04, 27.68] 2694) 197] 2891/0370) 287900 yo4o1501437. 59850] . 36501| .97119) 47 
750| 4.6) 35.01] 27.75] 2700| 327] 3027|79°°- 2127850)728. 72150) .50201| .96973| 44 
STATION 206 
¥ o| 18.1) 36.21| 26.18) 2551] 0] 2551)onn0 = he 0 o | .97449] 185 
30/50] 18. 0| 36.33] 26.31) 2564) 22] aag6)2068: 2) 178825)" jo8455) 48, 71750] . 09100) . 97414] 172 
152] 125] 16.3) 36.11] 26.55] 2587) 50] 36a7/zort- >| 195852) go4pe7itar. 75713] . 21201 .97363| 155 
125) 950] 12. 9| 35. 56| 26.86] 2616) 106] 2722/2670 5| 338037) g5qppaln43. 40776] . 38777| .97278| 126 
200| 450] 9.2] 35. 12) 27. 20| 2648) 193) 2841/2781 5) 255500, yo157p4l437, g4276] . 60927] . 97159) 97 
750| 6. 6| 34.95] 27.46] 2672| 323| 2995|7928- 2091524/729, 08476) .86527| 97005] 76 
| 
| 
Col. 1} Col.2} Col.3} Col.4) Col.5| Col.6) Col.7| Col.8} Col.9} Col.10) Col. 11) Col. 12 Col.13) Col.14) Col.15 
The abbreviations appearing at the top of the columns in the pre- 
ceding compilation of computations are explained as follows: 
Column 1 (dp) represents the difference of pressure in decibars of 
successive observed depths, which for all practical purposes is equal 
to the differences in depths of observation in meters. 
Column 2 contains the depths at which observations were made. 
