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Henry Walter Bates

Henry Walter Bates

Henry Walter Bates (1825-1892) was an English explorer and naturalist. His fame rests principally on his zoological work, especially his insect collection, and his discovery of the principle of mimicry.

Henry Bates was born in Leicester, the son of a manufacturer who intended him for a business career and apprenticed him to a hosiery maker. Bates had little formal education, but the Mechanics Institute in Leicester had a good library and offered evening courses. By attending the courses and reading, Bates learned Greek, Latin, French, draftsmanship, and composition. His growing interest in Zoology led him to spend his holidays roaming the countryside and collecting specimens.

In 1843 he met Alfred Russell Wallace, who later hit upon the idea of evolution and natural selection independently of Charles Darwin. The two young men decided to visit South America in the interest of science, but they were not able to leave until 1848 because of a lack of means. They arrived in Belém, Brazil, and spent 1 1/2 years exploring the Tocantins River. They next ascended the Amazon to Santarém and Ó bidos, where they parted to explore separately. Bates went 370 miles farther up the Amazon to Ega, the first important town on the tributary Solimões, remaining there over a year before descending to Belém. For the next 8 years he made collecting trips along the Amazon and its tributaries. His farthest penetration was to Forte Boa (approximately 66°W), from which he wished to go to the Andes, but because of failing health he returned to England in 1859. He took over 14, 000 specimens, mostly insects, of which about 8, 000 had previously been unknown to science.

Bates reached England with health and financial circumstances both poor. He managed to publish his only book, The Naturalist on the Amazons, in 1863; Darwin contributed the preface. In 1864 Bates became assistant secretary of the Royal Geographical Society, a post he held until his death on Feb. 16, 1892. This relieved him of financial worries, enabled him to support his family, and gave him influence to use in behalf of many explorers, including some in the Africa he never visited. Besides his work for the society, Bates wrote papers for scientific journals and was considered a great authority, perhaps the greatest, on Coleoptera (beetles and weevils).

Bates was responsible for first formalizing the principle of mimicry, though it was further developed later. It is the principle of protective resemblance. Species of animals that are defenseless and edible develop resemblances to species that are injurious and unfit for food, thus gaining some immunity from attack. Animals may also come to resemble plants, though the phenomenon is most generally found among creatures structurally similar.

Further Reading

Barbara G. Beddall, ed., Wallace and Bates in the Tropics: Introduction to the Theory of Natural Selection (1969), offers excerpts from the writings of the two scientists. J. N. L. Baker, A History of Geographical Discovery and Exploration (1931; 2d ed. 1967), furnishes a concise account of Bates's travels in the Amazon region.

Additional Sources

Moon, Harold Philip, Henry Walter Bates FRS, 1825-1892: explorer, scientist, and Darwinian, Leicester: Leicestershire Museums, Art Galleries, and Records Service, 1976. □

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Bates, Henry Walter

Henry Walter Bates, 1825–92, English naturalist and explorer. In 1848 he went with A. R. Wallace to Brazil, where he explored the upper Amazon, returning in 1859 with some 8,000 new zoological species. He was the first to state a plausible theory of mimicry. His great work was The Naturalist on the River Amazon (1863). From 1864, Bates was assistant secretary of the Royal Geographical Society.

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Bates, H. E.

H. E. Bates: (Herbert Ernest Bates), 1905–74, English author, b. Rushden, Northamptonshire. During World War II he served with the Royal Air Force. A good storyteller, Bates had the ability to render the sense of a particular place and time and was noted for his descriptions of the English countryside. Among his many novels are Fair Stood the Wind for France (1944), The Jacaranda Tree (1949), and The Triple Echo (1970).

See his autobiography (3 vol., 1969, 1971, 1971).

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Bates, H.E.

Bates, H.E. ( Herbert Ernest) (1905–74) English novelist, playwright, and short story writer. His novels include Fair Stood the Wind for France (1944), The Jacaranda Tree (1949), and a popular series featuring the Larkin family – including The Darling Buds of May (1958), Oh! To Be in England (1963), and A Little of What You Fancy (1970).

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Henry Walter Bates

Henry Walter Bates

1825-1892

English naturalist whose theory of mimicry (now called Batesian mimicry) explained that color patterns of different species can be similar because nonpoisonous species mimic the bright warning patterns of poisonous species. His hypothesis supported the theory of evolution by natural selection proposed by his contemporaries Charles Darwin and Alfred Russel Wallace. Bates also collected almost 15,000 animal species during 11 years of field work in the Amazon Basin and described more than 700 scarab species new to science.

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