40 METEOROLOGICAL RESULTS OF LAST CRUISE OF CARNEGIE 
Callao: The wet-bulb lapse rate was 1°0 between deck gentle northwest breeze. The sea-suriace temperature 
and crosstrees or nine times the saturated adiabatic was 28-3. 
rate. The wind was south-southeast, force 3, weather As suggested by Miss Clarke [23, p. 185], in all 
cloudy, sea temperature 18°8. probability these observed values were greatiy influ- 
3. March 12, i929, at lih, approaching the island of | enced by radiation from deck, sails, and screen. No 
Tahiti: The wet-bulb lapse rate was 1°1 in the 35 me- doubt the elements at the masthead were less affected 
ters between deck and masthead, or six times the satu- than the other two elements --a difference which tended 
rated adiabatic rate. The weather was squally witha to produce apparent superadiabatic rates. 
Table 44. Mean hourly values of vapor pressure in millimeters for groups, Carnegie, 1928-29 
(Corrected for noncyclic change) 

Dates ie ees 
as ee Longitude es 
1928 “ . mm mm mm 
I July 29-Aug. 6 9 56.3 N 40.7 W 7.84 7.88 7.77 
U Aug. 7-10 2 42.8N 47.8 W 12.46 12.45 TSE 
ll Aug. 11-23 i3 29.0N 42.0 W 20.70 20.58 20.48 
IV Aug. 24-Sep. 154 21 11.8N 43.0 W 21.19 21.12 21.14 
Vv Oct. 2-10 9 13.8N 71.0 W 22.52 22.49 22.65 
VI Oct. 26-Nov. 6 12 4.0N 81.0 W 20.86 20.75 20.56 
vu 
fe Nov. 7-Dec. 21) 35 16.58 104.3 W 14.99 14.94 15.03 
b Feb. 22-28, 1929 7 13.1$S 119.4 W 18.63 18.51 18.53 
Vill Dec. ae as ’c 8 37.28 96.7 W 12.81 12.82 12.68 
Ix Jan. 1-14 14 24.78 83.3 W 13.25 13.09 12.89 
x Feb. 6-17 12 12.38 88.2 W 17.00 17.00 17.00 
XI Mar. 1-314 21 16.88 147.9 W 21.24 21.01 21.05 
XII Apr. 22-May 31 e 32 9.7N 168.7 E 21.87 21.61 21.58 
xi 
(a) June 1- 30f 13 34.3 N 143.1 E 16.22 16.14 15.91 
(b) July 1-3 3 39.6 N 149.4E 10.81 10.69 10.58 
XIV July 4-218 19 47.7N 179.5 W 8.78 8.79 8.78 
XV July 22-28 7 41.5 N 131.8 W 10.56 10.42 10.37 
XVI Sep. 4-8 5 34.1N 126.3 W 12.46 12.30 12.11 
XVII 
(a) Sep. 9-16 8 27.8 N 136.6 W 14.66 14.52 14.57 
(b) Sep. 17-Oct. 7h 8 27.0 N 155.1 W 17.50 17.70 17.53 
(c) Oct. 11-251 14 25.2 N 140.7 W 16.73 16.68 16.59 
Oct. 26-Nov. 14 20 0.1S 150.5 W 20.97 20.95 20.98 
Local mean hours 
G 
ae) eS Oe ee ee ee ee 
mm mm mm mm mm mm mm mm mm mm mm 
7.82 7.82 7.80 7.83 7.74 7.74 7.84 8.02 8.02 8.11 8.16 
12.12 12.14 12.16 12.32 12.37 12.52 13.03 13.04 13.36 13.20 13.01 
20.57 20.53 20.37 20.37 20.83 20.94 20.91 21.29 21.43 21.45 21.68 
21.09 21.20 21.10 21.29 21.24 21.38 21.56 22.02 21.98 22.09 22.10 
22.47 22.62 22.42 22.99 23.00 22.99 23.03 23.00 22.79 22.96 23.29 
20.63 20.78 20.89 20.89 20.83 21.05 21.13 21.04 20.94 21.12 21.18 
15.05 15.20 15.21 14.97 15.18 15.10 15.06 15.15 15.12 15.13 15.13 
18.36 18.47 18.39 18.49 18.61 18.75 18.71 18.82 18.80 18.74 18.68 
12.75 12.70 12.73 12.74 12.91 12.87 13.02 13.12 13.05 13.02 13.13 
12.99 12.97 12.96 13.17 13.24 13.42 13.34 13.47 13.47 13.79 13.86 
16.91 17.03 16.89 17.09 17.21 17.42 17.40 17.47 17.54 17.57 17.54 
21.07 21.14 21.02 20.98 21.00 21.12 21.12 21.33 21.40 21.23 21.11 
21.47 21.54 21.28 21.38 21.43 21.54 21.56 21.72 21.72 21.70 21.81 
(2) 15.93 15.84 15.70 15.78 15.73 15.82 15.88 15.86 15.99 15.98 15.97 
(b) 10.66 10.79 10.73 10.76 10.93 10.83 10.80 10.90 10.94 11.03 10.83 
XIV 8.61 8.61 8.60 8.63 8.62 8.58 8.60 8.61 8.64 8.67 8.65 
XV 10.43 10.38 10.50 10.32 10.24 10.34 10.30 10.44 10.58 10.47 10.44 
XVI 11.99 12.33 12.22 12.24 12.38 12.12 12.01 11.83 11.79 12.02 12.03 
(a) 14.37 14.56 14.62 14.65 14.68 14.60 15.01 14.78 14.52 14.55 14.63 
17.84 17.58 17.52 17.28 17.31 17.34 17.43 17.47 17.42 17.79 17.75 
(c) 16.85 16.80 16.82 16.92 16.77 16.79 16.73 16.88 16.73 16.82 16.83 
20.73 20.79 20.76 20.67 20.73 21.04 21.03 21.05 20.88 20.90 20.92 
ENenbieeds<aHe. 


