2 
J. G. ANDERSSON, 
(Schwed. Südpolar- Exp. 
The conglomerate or coarse grauwacke reported by Captain SULIVAN may pos- 
sibly be identical with the coarse sandstone containing conglomeratic seams that I 
found at Port Stephens in West P'alkland (vide p. lo). Two small diabase-dikes 
that I noticed at Fox Bay may belong to the »numerous basaltic dikes» observed 
by Captain SuLlVAN. The third remark in Darwin’s foot-note on traces in West 
Falkland »of tertiary and boulder formations, corresponding with those of Tierra del 
P'uego» I cannot connect with any one of my observations, but as I have seen only 
the south-eastern part of West Falkland it may be noteworthy to future explorers. 
In his »Journal of researches into the geology and natural history of the various 
countries visited by H. M. S. Beagle» Darwin gives (p. 254 — -256) a description of 
the marvellous »streams of stones», that is, immense accumulations of large quartzite- 
blocks, often forming vast sheets covering parts of the mountain-slopes and the valley- 
bottoms. 
The ne.xt contributions to the geology of the Falkland Islands are due to the 
expedition on board the Challenger'. This expedition brought home partly from 
Port Louis, partly from Macbride’s Head some fossils belonging to the common 
Devonian fauna.' 
A big block of »diorite containing some crystals of augite» mentioned as found 
in a stone-river is noteworthy from a lithological point of view.^ 
Of very great importance in connection with the visit of the Challenger to the 
Falkland Islands is the description given by Sir Wyville THOMSON on the stone- 
rivers, including also an explanation of the phenomenon, that to some extent gives 
a good account of its process of formation. ^ 
My own experience of the Falkland Islands is connected with the Swedish 
South Polar Expedition of 1901 — 1903. For private reasons I was unable to join the 
Antarctic., when it left Sweden in October 1901, but at the end of January 1902 I 
took my departure from Europe with an English mail-steamer that reached Port 
Stanley, the capital of the Falkland Islands, on Febr. 21. Here I had to wait for 
about a month until the Antarctic could be expected back from its first voyage 
to Graham Land. During this time I went out with a coast-schooner along the 
south coast of East Ealkland to Port Stephens in West t'alkland Island, crossed 
this island on horseback to Fox Bay and returned with the mail-schooner to Port 
Stanley, after nearly a month’s absence. 
After a three months’ cruise to South Georgia the Antarctic was back in Port 
Stanley on the 4th of July and stayed there until the 6th of Sept. During this time 
I went, together with Mr. Skottsberg, the botanist of our expedition, to Port 
' Note by R. Etheriuge in Report on the scientific results of the voyage of H. M. ,S. Challenger. 
Narrative. Vol. I. Part. 2. P. 892 — 897. 
° Narrative. Part. 2. P. 892. 
3 Wyville Thomson: The Atlantic. Vol. II. P. 245 — 249. 
