3i6 



DISCOVERY REPORTS 



attempt to join Dibdin's and Cruchley's Islands, Laurie Island is not divided in two at 

 its western end, and the two important French names, Pte Chaumont and C. Valavielle, 

 are not inserted. Nevertheless it is of considerable interest, as the British Admiralty 

 Chart No. 1238, Hydrographic Office, September 7, 1839, at least as far as the South 

 Orkneys are concerned, appears to have been taken directly from it. A copy of this chart, 

 corrected to 1844, is shown in Fig. 7. In it for the first time Dibdin's and Cruchley's 



Fig. 7. The British Chart: taken from Chart No. 1238 published by the Admiralty 



on September 7, 1839. 



Islands appear under the name of Powell Islands, but otherwise it follows Dumoulin's 

 preliminary chart in every detail. As no charting of any kind was done at the South 

 Orkneys for the remainder of the nineteenth century, these islands have not been 

 altered in shape in any subsequent issue of No. 1238 until Bruce's map of Laurie Island 

 (Fig. 8) was incorporated in it as a small correction in 1905. Moreover, as No. 1238 was 

 finally withdrawn from circulation in 1925 as a result of surveys by Norwegian whalers, 

 the Coronation Island at least of the British Admiralty Charts has retained the shape 

 assigned to it by the French expedition in 1838 for more than eighty years. 



