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Jack Black (rat catcher)

Jack Black (rat catcher) is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Jack Black (rat catcher) rather than just read about it. In short: Jack Black was a rat-catcher and mole destroyer from Battersea, England during the middle of the 19th century. At the time, England was ravaged by a massive population of rats that disrupted crops and spread disease, and Black's rat killing abilities made him a minor celebrity and he advertised himself as Queen Victoria's official rat-catcher.

Jack Black (rat catcher) — main illustration
Jack Black (rat catcher) — illustration

Key takeaways

  • Jack Black (rat catcher) belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Jack Black (rat catcher) to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Jack Black (rat catcher) from memory before moving on to harder problems.

Reference excerpt

Jack Black was a rat-catcher and mole destroyer from Battersea, England during the middle of the 19th century. At the time, England was ravaged by a massive population of rats that disrupted crops and spread disease, and Black's rat killing abilities made him a minor celebrity and he advertised himself as Queen Victoria's official rat-catcher. Though he has been called the rat's "most notorious enemy", he did not kill all rats. Black bred unusually coloured rats and sold them as pets, playing a large role in domesticating the animal. He had a flamboyant appearance, typically donning a self-made "uniform" of green overcoat, scarlet waistcoat, and leather sash adorned with metal rats.

Biography As a young boy, Jack Black grabbed wild rats in Regent's Park and flung them in wire cages, which impressed passersby. He behaved like a showman, entertaining onlookers by training rats to live in his shirt and crawl up and down his arms. Black said the rat work came naturally to him. He earned himself various jobs catching rats on private property, and he also supplied live rats to pubs for rat-baiting contests, a popular mid-Victorian activity of placing bets on the number of rats a dog could kill. Black's promotional flyers described him as "V.R. Rat and mole destroyer to Her Majesty". Jack Black's eye-catching outfit caught the attention of Henry Mayhew, who wrote about Black in London Labour and the London Poor. Black told Mayhew about his vicious, nearly-fatal battles against England's rats: "I’ve been bitten nearly everywhere, even where I can’t name to you," he said. He also revealed that he tasted rat flesh "unbeknown to his wife," describing it as "moist as rabbits, and quite as nice." Black's signature tactic was to train ferrets to sniff out rats and then unleash dogs on the rats. He experimented with various other animals including raccoons, a badger named Polly, and a monkey which he said "didn’t do much". In addition to rat-killing, Black was involved in fishing, bird catching, taxidermy, and was particularly accomplished in dog breeding. He told Mayhew that his black tan terrier Billy, a rat-killing dog, was "the greatest stock dog in London" and had fathered "the greatest portion of the small black tan dogs" in the city, making the dog "known to all the London fancy". He said he sold a similar dog to the Austrian Ambassador for fourteen pounds. When Jack Black caught unusually coloured rats, he bred them to establish new colour varieties. He decorated his home-bred domesticated rats with ribbons and sold them as pets, mainly "to well-bred young ladies to keep in squirrel cages", he said. Beatrix Potter is believed to have been one of his customers, and she dedicated the book Samuel Whiskers to her rat of the same name. The more sophisticated ladies of court kept their rats in dainty gilded cages, and even Queen Victoria herself kept rats. It was in this way that domesticated or fancy rats were established.

Establishment of fancy rats Jack Black's sales of rats as pets during the 1840s and 1860s played a role in the rat's domestication and widespread acceptance as a pet. He bred many different colours of the rats, which became known as fancy rats. By 1869, Charles Baudelaire called the rat "the poor child’s toy" in his poetry collection Le Spleen de Paris. By 1901, rats were so popular as pets that Mary Douglas received permission from England's National Mouse Club to bring her pet rats to an exhibition at the Aylesbury Town Show on 24 October 1901. Her black and white hooded Rattus norvegicus won "Best in Show," and the Rat Fancy was formally launched. The original Rat Fancy lasted until 1931, as part of the National Mouse and Rat Club. The modern Rat Fancy was revived in 1976 with the formation of the National Fancy Rat Society, and the fancy rat spread around the world. Nowadays, fancy rats are widely accepted as pets and exhibition animals.

See also

Rat-baiting

References

Illustrations

Jack Black (rat catcher): Jack Black, woodcut print from London Labour and the London Poor (Vol. 3), 1851
Jack Black, woodcut print from London Labour and the London Poor (Vol. 3), 1851

Worked examples

Example 1 — a first encounter with Jack Black (rat catcher)

Start with the simplest possible case. Write down what Jack Black (rat catcher) claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Jack Black (rat catcher) before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Jack Black (rat catcher) ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Jack Black (rat catcher)

In research
Jack Black (rat catcher) appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Jack Black (rat catcher) in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Jack Black (rat catcher) is common in secondary-school and first-year university syllabi. It links to neighbouring topics 19th-century births, People from Battersea, Pest trapping, so understanding it makes those chapters shorter.
In everyday life
Look for Jack Black (rat catcher) outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Jack Black (rat catcher) in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Jack Black (rat catcher) means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Jack Black (rat catcher) out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Jack Black (rat catcher) in simple terms?

Jack Black was a rat-catcher and mole destroyer from Battersea, England during the middle of the 19th century. At the time, England was ravaged by a massive population of rats that disrupted crops and spread disease, and Black's rat killing abilities made him a minor celebrity and he advertised him…

Why does Jack Black (rat catcher) matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Jack Black (rat catcher)?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Jack Black (rat catcher).

Tags

  • 19th-century births
  • People from Battersea
  • Pest trapping
  • Rat-baiting

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