488 



Appendix D. 



On the loth at 8 a.m. a heavy sea from the northward, the sky a 

 dense mass of clouds with very limited horizon ; the whole aspect of the 

 heavens a grey misty wrack of clouds, gradually falling lower and 

 lower, — only in the direction of the central point was there visible a 

 gloomy, leaden-coloured segment of clear horizon. From 4 p.m. to 8 

 P.M. the clouds completely enveloped us, so that it was barely possible 

 to descry an object a cable's length from the ship ; constant gusts of 

 wind with fine rain or sea-spray ; very heavy sea from the west, but the 

 waves fairly decapitated by the wind as fast as they rose. By 11 p.m. 

 a few dark clouds became visible in the S.S.E., and the horizon began 

 to widen again. 



20th. The sky still covered ; in the west, white parallel bands of 

 clouds, forming segments of circles : the masts and rigging covered with 

 a crust of evaporated salt. 



17th Auffust. 



17th August, continued. 



6 



7 



8 



9 



10 



11 



12 



Mean 

 pressure of 

 atmosphere. 



29.808 

 .810 

 .812 

 .812 

 .806 

 .795 

 .784 



Direction of wind. 



E.N.E. 

 N.E. byE.|E 

 N.E. byE.iE. 



N.E. byE. 

 N.E. by E. i E, 



E.N.E 



E.N.E. 



18th August. 



29.779 

 .771 

 .762 

 .758 

 .751 

 .740 

 .721 

 .696 



E.byN. 



E.byN. 



E. by N. 



E. by N. 



E.byN. 



N.E. byE. IE. 



N.E. byE. 



N.E. byE. 



strength 

 of wind 

 to 10. 



4. 



4. 



3.5 



3.5 



3.5 



3.5 



3.5 



3.5 



3.2 



3.2 



3.2 



3.5 



3.5 



4. 



4.5 



