ArticleslgStudy

earth science

Percy Sladen

Percy Sladen is a earth 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 Percy Sladen rather than just read about it. In short: Walter Percy Sladen (30 June 1849 – 11 June 1900) was an English biologist who specialised in starfish. The son of a wealthy leather merchant, Sladen was born near Halifax, Yorkshire on 30 June 1849.

Percy Sladen — main illustration
Percy Sladen — illustration

Key takeaways

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

Reference excerpt

Walter Percy Sladen (30 June 1849 – 11 June 1900) was an English biologist who specialised in starfish. The son of a wealthy leather merchant, Sladen was born near Halifax, Yorkshire on 30 June 1849. He was educated at Hipperholme Grammar School and Marlborough College, but received no university training. As a young man he indulged in his hobby of natural history, but soon became fascinated with echinoderms. In 1876 he was elected a Fellow of the Linnean Society of London, and the following year became a Fellow of the Zoological Society of London. 1877 also saw the publication of his first paper, in which he split the sea-lily genus Poteriocrinus into four; in his lifetime, Sladen would gain a reputation as a "splitter" because of his proclivity for declaring specimens to belong to new genera or species. Late that year he began a long and fruitful collaboration with Duncan; which would see the publication of some 15 co-authored papers, many on fossils, over twelve years.

From December 1878, Sladen spent three months at Naples under the auspices of the British Association for the Advancement of Science. His work there, on echinoderm pedicellariae, established his reputation as a leading authority on echinoderms, and in 1881 he was invited to o and write up an account of the starfishes collected during the Challenger expedition. This would take him a decade to complete, and comprise nearly 1000 pages and 118 plates. By 1890, Sladen married Constance Anderson of York. She was the sister of Tempest Anderson the volcanologist, and Yarborough Anderson, a barrister. Her father William Charles Anderson was a surgeon and Sheriff of York. By that time Sladen was on the Committee of the British Association for the Advancement of Science, Zoological Secretary of the Linnean Society of London, and also active in the Zoological Society of London and the Geological Society of London. He therefore relocated to London, at least temporarily. Unfortunately, much of Sladen's later life was interrupted by poor health. In 1895 he was elected vice-president of the Linnean Society, but only a few months later he gave up both this and his secretarial position because of health problems. He completed only two more papers before retiring in 1898 to Northbrook, an Exeter estate inherited on the death of his uncle, John Dawson. He died there two years later, on 11 June 1900. Following his death, Sladen's wife helped preserve her husband's memory by donating his large collection of echinoderms to the Royal Albert Memorial Museum in Exeter, and endowing the Percy Sladen Memorial Trust, to be administered by the Linnean Society to support scientific research.

Honoria The hatchetfish Argyropelecus sladeni was named after him.

See also Category:Taxa named by Percy Sladen

Notes

References Gardiner, Brian G. (2003). "A biography of Percy Sladen (1849–1900)" (PDF). The Linnean (Special Issue No. 4). Archived from the original (PDF) on 7 August 2008. Retrieved 9 May 2008. (alternative; retrieved 2016-12-15)

External links Works by or about Percy Sladen at the Internet Archive

Illustrations

Percy Sladen: Walter Percy Sladenby Henry Tanworth Wells
Walter Percy Sladenby Henry Tanworth Wells
Percy Sladen: The Percy Sladen collection of echinoderms is one of the most significant outside any national collection. Royal Albert Memorial Museum, Exeter[1]
The Percy Sladen collection of echinoderms is one of the most significant outside any national collection. Royal Albert Memorial Museum, Exeter[1]

Worked examples

Example 1 — a first encounter with Percy Sladen

Start with the simplest possible case. Write down what Percy Sladen claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In earth 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 Percy Sladen 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 Percy Sladen 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 Percy Sladen

In research
Percy Sladen appears in earth 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 Percy Sladen 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
Percy Sladen is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1849 births, 1900 deaths, English zoologists, so understanding it makes those chapters shorter.
In everyday life
Look for Percy Sladen 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.

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Percy Sladen in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Percy Sladen 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 Percy Sladen out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Percy Sladen in simple terms?

Walter Percy Sladen (30 June 1849 – 11 June 1900) was an English biologist who specialised in starfish. The son of a wealthy leather merchant, Sladen was born near Halifax, Yorkshire on 30 June 1849.

Why does Percy Sladen matter?

Because it connects several earth 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 Percy Sladen?

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 Percy Sladen.

Tags

  • 1849 births
  • 1900 deaths
  • English zoologists
  • Fellows of the Geological Society of London
  • Fellows of the Linnean Society of London
  • Fellows of the Zoological Society of London
  • People educated at Marlborough College

Keep exploring