INDEX ABBOTT, Mr., on spiders, 36 Aborigines banished from Van Diemen's Land, 475 of Australia, 430 to 458 Abrolhos Islands, 9, 14 Absence of trees in Pampas, 48 Aconcagua, volcano of, 269, 294, 312 Africa, Southern part desert, yet sup- Ageronia feronia, 39 on Holothuriæ, 494 Alluvium, saliferous, in Peru, 367 Ants at Keeling Island, 485 |