518 



THE YOYAGE OF H.M.S. CHALLENGER. 



SATURDAY, 18th July 1874. 



Hour. 



10. 



Noon. 

 2. 

 4. 



10. 

 Midt. 



Totals. 



Mean. 



True 

 Direction. 



W. 



W.N.W. 

 S. W. 

 S. \V. 



w.s.w. 



W. 8. W. 

 W.S.W. 



w. s. w. 



sw b w. 

 sw b w. 

 sw b w. 

 s.s.w. 



sw°w. 



45 



crlt 

 cpr 

 cqr 

 be 

 be 

 be 

 cp 



c 



c 

 be 



o 



o 



cqp 



21 



5S rS C 



877 

 872 

 907 

 950 



Mil 



928 

 930 

 938 

 '.Mi;, 

 011 

 999 

 965 



•11303 



29-942 



Thermometer. 



Dry 



Bulb. Bulb. 



112-5 



69-4 



Damp 



S7-0 



67-2 



S ■ 



100 

 100 

 98 

 91 

 90 

 80 

 83 

 83 

 83 

 82 

 84 

 81 



95 



72-0 

 72-0 

 72-2 

 72-2 

 71-5 

 71-5 

 72-0 

 72-2 

 72-5 

 72'2 

 73-5 

 74-5 



28-3 



72-4 



112 



Description of Clouils 



Upper. 



Cum. 



Cum. 

 Cm.&Nb. 

 Cm.&Cm.st 

 Cm.&Cm.st 

 Cm.tfcCm.st 

 Cm.&Str. 

 Cm.&Str. 

 Cm.&Str. 



Cum. 



Cum. 



Cum. 



Cum., 



Str. , & 



Cum str. 



Remarks. 



At noon, lat. 23° 0' s. long. 173° 39' w. 

 Temperature by self-registering thermo- 

 meter, max. 71°, min. 67°. 

 Current, N. 45° E. 8'. 

 8 A. M. , saw a boatswain bird. 

 Sp. gr. 1-02661. 



