THE SCOTTISH NATIONAL ANTARCTIC EXPEDITION. 



253 



Mean Relative Humidity. SATUitATiON = 100. 



1903. 

 February 

 March 



1904. 

 March 



Jlean . 



April 



Kanf^e. 



6-9 

 4-6 



6-6 



3-6 



4-6 



Mean Vapouk Pkes.suke. 



1903. 

 February 

 March 



1904. 

 March 



Mean . 



April 



130 



110 



115 

 120 

 262 



•ISO 

 •114 



■115 



•120 



■249 



■130 

 ■116 



•116 



•121 



•248 



•128 I •12S 

 •115 ^114 



•119 : •lis 

 •121 •iig 



•244 ^245 



■129 

 ■115 



•117 



•120 



•244 



•127 

 •US 



•117 



•121 



■245 



■125 



•lie 



•118 

 ■120 

 -246 



•131 •ISO 

 ■114 ^114 



•1-20 

 •121 

 ■269 



■129 



•lis 



•r20 

 •121 

 •256 



•128 



•lis 



■118 

 •120 

 •257 



•127 

 •115 



•118 



■120 



■260 



■128 

 ■115 



•116 



•119 



•256 



•127 

 •116 



•117 



•120 



■269 



•128 

 •116 



•118 



•120 



•262 



•006 

 ■006 



■006 



■003 



■017 



Dealing with the mean values for the three mouths of observations in the Weddell 

 Sea, we obtain the following departures from the mean of the day after applying the 



corrections for " midni2;ht difference " : — 



It will be seen that the pressure curve shows a defined minimum at 4 a.m., and a 

 maximum at 7 p.m. The morning maximum and afternoon minimum are feebly 



