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The Malay Archipelago BOOKS & ARTS COMMENT The Malay Archipelago: the land of the orang-utan, and the bird of paradise; a IN RETROSPECT narrative of travel, with studies of man and nature ALFRED RUSSEL WALLACE The Malay Macmillan/Harper Brothers: first published 1869. lfred Russel Wallace was arguably the greatest field biologist of the nine- Archipelago teenth century. He played a leading Apart in the founding of both evolutionary theory and biogeography (see page 162). David Quammen re-enters the ‘Milky Way of He was also, at times, a fine writer. The best land masses’ evoked by Alfred Russel Wallace’s of his literary side is on show in his 1869 classic, The Malay Archipelago, a wondrous masterpiece of biogeography. book of travel and adventure that wears its deeper significance lightly. The Malay Archipelago is the vast chain of islands stretching eastward from Sumatra for more than 6,000 kilometres. Most of it now falls within the sovereignties of Malaysia and Indonesia. In Wallace’s time, it was a world apart, a great Milky Way of land masses and seas and straits, little explored by Europeans, sparsely populated by peoples of diverse cul- tures, and harbouring countless species of unknown plant and animal in dense tropical forests. Some parts, such as the Aru group “Wallace paid of islands, just off the his expenses coast of New Guinea, by selling ERNST MAYR LIB., MUS. COMPARATIVE ZOOLOGY, HARVARD UNIV. HARVARD ZOOLOGY, LIB., MUS. COMPARATIVE MAYR ERNST were almost legend- specimens. So ary for their remote- he collected ness and biological series, not just riches. Wallace’s jour- samples.” neys throughout this region, sometimes by mail packet ship, some- times in a trading vessel or a small outrigger canoe, were driven by a purpose: to collect animal specimens that might help to answer a scientific question. That question was: if spe- cies evolve, what is the mechanism? His Malay expedition began in 1854, five years before the publication of Charles Dar- win’s On the Origin of Species. As he pursued his goal, oblivious to Darwin’s slow, secret theorizing, Wallace suffered one disadvan- tage that, paradoxically, proved advanta- geous: a need to earn money. He had no family funds such as those that had eased Darwin’s way. He paid his expenses by sell- ing select specimens — pretty beetles and butterflies, stuffed birds and occasionally mammal skins — to museums and amateur collectors through an agent in London. So he had reason to take multiple individuals of the more striking species. He collected series, not just samples. From a riverside in southern Celebes he brought away “six good specimens” of Papilio androcles, a rare and beautiful swallowtail butterfly. And in Waigiou he harvested “twenty-four fine specimens” of Paradisaea rubra, the red bird of paradise. One effect of this redun- dant, commercial collecting was that he saw Birds of paradise, as illustrated in The Malay Archipelago in 1869. intraspecific variation laid out before him. 11 APRIL 2013 | VOL 496 | NATURE | 165 © 2013 Macmillan Publishers Limited. All rights reserved COMMENT BOOKS & ARTS At a time when essentialist thinking on his own whims and interests, but also on evolution. Comparing the fauna of Bali with (every species fixed, an ideal type) and the which way the monsoon winds were blowing that of Lombok, Wallace laid the ground- idea of special creations (each species shaped or the next mail ship was heading. He took work for one of his major contributions: the in a particular way by God) prevailed, even note of people and cultures, and recorded concept of Wallace’s Line, the deep-water among most scientific naturalists, to see what intrigued him in his affable, bemused division between two major faunal realms, intraspecific variation was to take the first voice. Those parts of his book are as chatty the Indo-Malay and the Australasian. step towards an evolutionary theory. and engaging as Samuel Pepys’s diaries or Moving from Sumatra to Java to Borneo, Wallace travelled continuously among James Boswell’s Life of he suggested (correctly) that those islands the islands for eight years (until 1862), Johnson. And he con- “This book must once have been connected to the Asian and his mishaps, his hardships, his long tinued his biological is a joyride mainland, resting high and dry on what we weeks of illness and loneliness, his near- collections: an exqui- through one now call the Sunda Shelf. And he supported death scrapes, as well as his collecting and site birdwing butter- of the most Darwinian theory, subtly rather than explic- observing, are recounted in this vivid, fly here, a giant beetle exotic, most itly, by showing, in case after case, that only encompassing book. From his jumping-off there, and, whenever remote regions dispersal of ancestral forms, followed by point in Singapore he proceeded to Borneo, possible, multiple of Earth.” isolation and evolutionary change, could then to Bali, then across the narrow, deep specimens of each. explain the patterns of faunal distribution strait separating Bali from Lombok. From When the time came to combine his collect- that his long labours had revealed. Special there he looped up to the Dutch entrepôt of ing notes with his anthropological observa- creations and essentialism just couldn’t make Macassar, on the southwest tip of Celebes, tions and the diary of his many adventures sense of the Malay Archipelago. which became his hub for further voyages and misadventures, Wallace recast the zig- But this book is not just a subtle compila- around the archipelago. zaggy muddle into a linear geographical tion of data and argument. It is also a joyride He zigzagged from island to island — out structure. The Malay Archipelago proceeds through one of the wildest, most exotic, most east to the Aru cluster, back west to Suma- from west to east — Singapore to Aru. remote regions of Earth that any Victorian tra and Java, up into the northern Moluc- This structure serves well the implicit explorer ever visited. There are deft descrip- cas and down south to Timor — depending subjects of the book: biogeography and tions of sensory experience, such as this on the taste of durian, the East’s most notori- ous fruit: “A rich butter-like custard highly flavoured with almonds ... but intermingled with it come wafts of flavour that call to mind cream-cheese, onion-sauce, brown sherry, and other incongruities.” There are moments of breathless drama, mostly involving not physical danger (about which Wallace tends to be matter-of-fact) but MUS., LONDON HISTORY NATURAL small, important triumphs, such as when he caught a new species of birdwing butterfly: “On taking it out of my net and opening the glorious wings, my heart began to beat vio- lently, the blood rushed to my head, and I felt much more like fainting than I have done when in apprehension of immediate death.” From his high points of discovery to his low points of misery, and through all the miles and days in between, Wallace is a compan- ionable narrator with a dry wit, a keen eye, an inexhaustible curiosity and not a trace of self-pity. What more can readers ask of a lit- erary and scientific traveller? One thing is curiously absent from this long, brimming book. In recounting his stay on Ternate, in 1858, Wallace declined even to mention the world-altering idea — his theory of evolution — that he put to paper there. He could have crowed: in this place, at this time, I co-discovered natural selection. Evidently he didn’t feel the need. By 1869, when The Malay Archipelago appeared, Wallace himself was a Darwinist. ■ David Quammen is a writer. His most recent book is Spillover: Animal Infections and the Next Human Pandemic. His 1996 book, The Song of the Dodo: Island Biogeography in an Age of Extinctions, features Wallace. Some of the tropical butterflies that Wallace collected during his travels. e-mail: [email protected] 166 | NATURE | VOL 496 | 11 APRIL 2013 © 2013 Macmillan Publishers Limited. All rights reserved 1855 ON THE LAW WHICH HAS REGULATED THE INTRODUCTION OF NEW SPECIES BY ALFRED RUSSEL WALLACE FEBRUARY, 1855 (ALSO KNOWN AS THE SARAWACK LAW. ED.) Wallace, A. R. 1855. On the law which has regulated the introduction of new species. Annals and Magazine of Natural History, 2nd Series, 16:184–196. © 1998, Electronic Scholarly Publishing Project http://www.esp.org This electronic edition is made freely available for scholarly or educational purposes, provided that this copyright notice is included. The manuscript may not be reprinted or redistributed for commercial purposes without permission. Wallace, A. R. 1855. On the law which has regulated the introduction of new species. Annals and Magazine of Natural History, 2nd Series, 16:184–196. 1855 ON THE LAW WHICH HAS REGULATED THE INTRODUCTION OF NEW SPECIES BY ALFRED RUSSEL WALLACE FEBRUARY, 1855 (ALSO KNOWN AS THE SARAWACK LAW. ED.) Geographical Distribution dependent on Geologic Changes. EVERY NATURALIST who has directed his attention to the subject of the geographical distribution of animals and plants, must have been interested in the singular facts which it presents. Many of these facts are quite different from what would have been anticipated, and have hitherto been considered as highly curious, but quite inexplicable. None of the explanations attempted from the time of Linnaeus are now considered at all satisfactory; none of them have given a cause sufficient to account for the facts known at the time, or comprehensive enough to include all the new facts which have since been, and are daily being added. Of late years, however, a great light has been thrown upon the subject by geological investigations, which have shown that the present state of the earth and of the organisms now inhabiting it, is but the last stage of a long and uninterrupted series of changes which it has undergone, and consequently, that to endeavour to explain and account for its present condition without any © 1998, Electronic Scholarly Publishing Project http://www.esp.org This electronic edition is made freely available for scholarly or educational purposes, provided that this copyright notice is included.
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