DISTRIBUTION OF ANTARCTIC MACROPLANKTON 81 



part of September (WS 257-96). A series of stations was then worked along the ice-edge to the 

 south-east of the island (WS 287 and 288, and 297-310), and a second line was laid from South 

 Georgia to the Falkland Islands (WS 314-17). After the return of the ship to South Georgia a com- 

 plete survey was again carried out (WS 321-72 in December-January), and she proceeded to the 

 South Shetland Islands (WS 374-81), where intensive work was done in the Bransfield Strait in 

 February (WS 382-99). A line of stations was then taken across the Drake Passage to Cape Horn 

 (WS 400-5), and then to South Georgia via the Falkland Islands (WS 413-16). Here two more 

 lines of stations were taken in April on the south side of the island (WS 417-26) and a fourth line 

 between South Georgia and the Falkland Islands (WS 427-31). The season closed with the ship's 

 departure from South Georgia to Capetown, when two more stations were taken in Antarctic water 

 (WS 434 and 435). 



Season 1929-30 (Figs. 8, 12, 13 and 16). The 'William Scoresby' returned to South Georgia in 

 October and proceeded thence to the Falkland Islands (WS 464-6). From November to February 

 she visited the Bellingshausen Sea, and, though primarily engaged in other work, was able to con- 

 tinue some plankton investigations. These included a line of stations from the Falkland Islands to the 

 South Shetlands (WS 468-74), intensive work in the Bransfield Strait (WS 476-93), various stations 

 off the coast of Adelaide Island and the Biscoe Islands (WS 496-501), five stations along the ice- 

 edge in the Bellingshausen Sea as far as 100 W (WS 502-8), and a line of stations at short intervals 

 running north-westward from Adelaide Island (WS 509-17). The ship then returned in February 

 to the Falkland Islands. In the meantime the 'Discovery II' reached South Georgia in January, 

 and proceeded with the usual survey of the whaling grounds (Sts. 300-59). This was followed by a 

 visit to the South Sandwich Islands where six plankton stations were taken (Sts. 360-9), and some 

 time was spent in topographical surveying. In March a line was begun from the Sandwich group 

 to the Burdwood Bank (Sts. 372-5), which was later completed by the 'William Scoresby' (WS 527- 

 30) after the latter ship had worked more stations between the Falkland Islands and South Georgia 

 (WS 520-6). In April the ' Discovery II ' visited the South Shetlands, took a station in the Bransfield 

 Strait (St. 376), a line across the Drake Passage (Sts. 378-85), and two more stations on the way back 

 to South Georgia (Sts. 390 and 392). The 'William Scoresby' now left for Europe and the 'Dis- 

 covery II ' for Capetown. At the beginning of the voyage an attempt was made with the latter ship 

 to carry out continuous observations throughout a 24-hour period near South Georgia. Flights of 

 six closing N 100 B were to be taken every four hours (St. 393), but the series was interrupted by 

 bad weather before it could be completed. One more station (St. 394) was taken in Antarctic water 

 on the way to the Cape. 



Season 1930-1 (Figs. 9, 14 and 17). The ' Discovery II ' sailed from Capetown in October, reached 

 the ice-edge south of Bouvet Island (Sts. 452-60) and followed it westwards to South Georgia 

 (Sts. 462-72). A 24-hour station with closing N 100 B (St. 461) was worked off the ice. The South 

 Georgia survey was repeated in November (Sts. 475-525), and a cruise to higher latitudes begun. 

 The ship followed the ice-edge from a point near the Sandwich group to the Bransfield Strait 

 (Sts. 528-41), taking fourteen stations in the Strait (Sts. 542-55), and continuing the voyage from 

 the South Shetlands to Adelaide Island (Sts. 556-60), and westwards along the ice-edge of the 

 Bellingshausen Sea to about ioo° W, 70 S, and back to Adelaide Island (Sts. 561-82). A line of 

 stations was worked north-westwards from Adelaide Island (Sts. 583-92) and a number of other 

 stations off Adelaide Island, the Biscoe Islands, the South Shetlands, and the South Orkneys 

 (Sts. 593-617, January-February)— a period largely occupied also with survey work. The voyage 

 was continued to the South Sandwich Islands (Sts. 618-29), westward towards the Falkland Islands 

 (St. 631), south again to the South Orkneys (Sts. 633-6) and Bransfield Strait (Sts. 637-44), north 

 towards Staten Island (Sts. 646-9), and back to South Georgia at the end of March (Sts. 655-9). 

 In the meantime the 'William Scoresby' returned to South Georgia in January and made a cruise 

 south-eastwards past the South Sandwich Islands, and southwards to the ice-edge in the eastern part 

 of the Weddell Sea, making the return journey on much the same route (WS 534-65, January- 



