162 APPENDIX. 



nary one ; but I consider it too improbable to ren- 

 der it necessary to hazard any opinion concerning 

 it. 



" (c.) From the facts stated in pages 319, 320, 

 of this paper, I think we derive a sanction for cal • 

 culating on clear weather at all times, but with 

 southerly storms ; and, as these occur but rarely, 

 the progress of the journey would not probably be 

 suspended by an obscure sky, except for short periods, 

 and at distant intervals. 



" Notwithstanding I have now distinctly consi- 

 dered every obvious objection and difficulty to be 

 surmounted, I am nevertheless sensible, that in 

 the realising of any project or discovery, whether by 

 sea or on land, there will occur many adventitious 

 circumstances, which may tend to mar the progress 

 of the best regulated expedition. Therefore, it may 

 not be improper to confirm and strengthen the whole, 

 by directing the attention to what has been done, 

 in journeying under difficulties which may bear a 

 comparison with the undertaking here alluded to, 

 and occasionally under circumstances the most un- 

 favourable to success. 



" 1st, When treating of icebergs, I alluded to 

 the journey of Alexei Mahkoff, in which it ap- 

 pears, that he performed near eight hundred miles 

 across a surface of packed ice, in the spring of 



