[B17]

March 56

14

Notes by Capt. Sulivan on the Falkland Isld.— Is sure about the Boulder formation on west isld facing Patagonia.— Blocks of granite about 3 ft in diameter all rounded.— —

The original wild horses (ie before recent importations) about 1/4 were of different varieties of Roan.—

Sulivan speculated whether the different colours of the cattle were owing to particular colours of cattle which wandered there this do may be so.—

The cattle have suddenly become greatly impoverished & reduced in number owing to their having suddenly killed nearly all the Tussac.— only 1 Beetle said to feed on Tussac accounts for suddenness — formerly when not quite so much pressed

[B18]

they need to eat down within few inches, but just lately pressed by severe winter, they eat down to roots & killed the tussac — then yearlings continued sucking till almost next calf was born cow much reduced cd not support new calf, it and yearling frequently both died.— Horses stand winter better yet than cattle, because scrape snow with feet, curious this for for several hundred years horses of La Plata cd not have scratched snow, so with sheep. will do to add to St. Helena case All showing how little we understand the relation of animals to each other & to productions of wild.