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astronomy

Victor Horsley

Victor Horsley is a astronomy 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 Victor Horsley rather than just read about it. In short: Sir Victor Alexander Haden Horsley (14 April 1857 – 16 July 1916) was a British scientist and professor. He was born in Kensington, London.

Victor Horsley — main illustration
Victor Horsley — illustration

Key takeaways

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

Reference excerpt

Sir Victor Alexander Haden Horsley (14 April 1857 – 16 July 1916) was a British scientist and professor. He was born in Kensington, London. Educated at Cranbrook School, Kent, he studied medicine at University College London and in Berlin, Germany (1881) and, in the same year, started his career as a house surgeon and registrar at the University College Hospital. From 1884 to 1890, Horsley was Professor-Superintendent of the Brown Institute. In 1886, he was appointed as Assistant Professor of Surgery at the National Hospital for Paralysis and Epilepsy, and as a Professor of Pathology (1887–1896) and Professor of Clinical Surgery (1899–1902) at University College London. He was a supporter of women's suffrage and was an opponent of tobacco and alcohol.

Personal life Victor Alexander Haden Horsley was born in Kensington, London, the son of John Callcott Horsley and his second wife Rosamund (Haden), and the brother of Rosamund Brunel Horsley. His given name, Victor Alexander, was given to him by Queen Victoria. In 1883, he became engaged to Eldred Bramwell, daughter of Sir Frederick Bramwell. On 4 October 1887, Victor and Eldred married at St. Margaret's, Westminster. They had two sons, Siward and Oswald, and a daughter, Pamela. He was knighted in the 1902 Coronation Honours, receiving the accolade from King Edward VII at Buckingham Palace on 24 October that year. Horsley was a champion of many causes. One of his primary life crusades was the temperance movement. Having observed that many injuries admitted to the hospital were due to alcohol, Horsley threw himself into becoming a temperance reformer. He soon rose up to the position of vice president of the National Temperance League and the president of the British Medical Temperance Association. In 1907, along with Dr. Mary Sturge, he published a book on alcoholism titled Alcohol and the Human Body. According to his biographers, Tan & Black (2002), "Horsley's kindness, humility, and generous spirit endeared him to patients, colleagues, and students. Born to privilege, he was nonetheless dedicated to improving the lot of the common man and directed his efforts toward the suffrage of women, medical reform, and free health care for the working class (...) An iconoclast of keen intellect, unlimited energy, and consummate skill, his life and work justifies his epitaph as a "pioneer of neurological surgery".

Medical career

Horsley specialised in surgery and in physiology. He was the first physician to remove a spinal tumor, in 1887, by means of a laminectomy. He developed many practical neurosurgical techniques, including the hemostatic bone wax, the skin flap, the ligation of the carotid artery to treat cerebral aneurysms, the transcranial approach to the pituitary gland and the intradural division of the trigeminal nerve root for the surgical treatment of trigeminal neuralgia. As a neuroscientist, he carried out studies of the functions of the brain in animals and humans, particularly on the cerebral cortex. His studies on motor response to faradic electrical stimulation of the cerebral cortex, internal capsule and spinal cord became classics of the field. Those studies later translated into his pioneering work on neurosurgery for epilepsy. Between 1884 and 1886, Horsley was the first to use intraoperative electrical stimulation of the cortex for the localization of epileptic foci in humans, preceding Fedor Krause and Wilder Penfield. He was also a pioneer in the study of the functions of the thyroid gland. He studied myxedema and cretinism, which are caused by a decreased level of the thyroid hormones (hypothyroidism), and established for the first time, in experiments with monkeys, that they could be treated with extracts of the gland. Appointed in 1886 as secretary to a governmental commission formed to study the anti-rabies vaccine developed by Louis Pasteur, Horsley corroborated his results and created a campaign to vaccinate against rabies in the United Kingdom. As a pathologist, he carried out research on bacteria and founded the Journal of Pathology. In June 1886, he was elected a Fellow of the Royal Society and, in 1891, jointly with his brother-in-law Francis Gotch, delivered their Croonian Lecture on the subject of the mammalian nervous system. In 1893, he was awarded the Cameron Prize for Therapeutics of the University of Edinburgh. A year later, in 1894, he won the Royal Medal for "his investigations relating to the physiology of the nervous system, and of the thyroid gland, and to their applications to the treatment of disease". Horsley, who had been a keen rifle shot when serving in the Artists' Rifles as a medical student, also investigated the effect of gunshot wounds on the brain, experimenting with animals provided by a butcher and using the recently issued Lee-Metford rifle. He concluded that the immediate cause of death that follows was due to respiratory failure, not heart failure. His best-known innovation is the Horsley–Clarke apparatus, developed in 1908 together with Robert H. Clarke, for performing the so-called stereotactic surgery, whereby a set of precise numerical coordinates are used to locate each brain structure. He was a pioneer in neurosurgery and operated on a total of 44 patients. He authored the book Functions of the Marginal Convolutions (1884) and, as a co-author, Experiments upon the Functions of the Cerebral Cortex (1888) and Alcohol and the Human Body (1902).

Political career Horsley was a Liberal Party supporter and contested the December 1910 General election as a Liberal candidate for the London University seat. The Animal Defence and Anti-Vivisection Society campaigned against his election because of his involvement with vivisection. Following the election, he was adopted as prospective Liberal candidate, first for Islington East and then, in 1913, for Harborough in Leicestershire. Harborough was a Liberal seat and a general election, expected to take place in 1914 would most likely have seen him elected to parliament. However, he resigned as prospective candidate, citing opposition to his views on women's suffrage and temperance on the part of constituency officials, just before the First World War started. Horsley strongly supported the Liberals' welfare state initiative, the National Insurance Act of 1911, despite strong opposition from most of his medical colleagues.

First World War service and death

… excerpt ends here. Continue reading the full article.

Illustrations

Victor Horsley illustration
Victor Horsley: Victor Horsley
Victor Horsley
Victor Horsley: The blue plaque to Victor Horsley on Gower Street in London
The blue plaque to Victor Horsley on Gower Street in London
Victor Horsley: Grave of Victor Horsley at Amara War Cemetery.
Grave of Victor Horsley at Amara War Cemetery.

Worked examples

Example 1 — a first encounter with Victor Horsley

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

In research
Victor Horsley appears in astronomy 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 Victor Horsley 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
Victor Horsley is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1857 births, 1916 deaths, 19th-century British surgeons, so understanding it makes those chapters shorter.
In everyday life
Look for Victor Horsley 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 Victor Horsley in 20 minutes

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

Frequently asked questions

What is Victor Horsley in simple terms?

Sir Victor Alexander Haden Horsley (14 April 1857 – 16 July 1916) was a British scientist and professor. He was born in Kensington, London.

Why does Victor Horsley matter?

Because it connects several astronomy 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 Victor Horsley?

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 Victor Horsley.

Tags

  • 1857 births
  • 1916 deaths
  • 19th-century British surgeons
  • 19th-century English medical doctors
  • Academics of University College London
  • Alumni of University College London
  • Anti-smoking activists
  • Artists' Rifles soldiers
  • British Army personnel of World War I
  • British endocrinologists
  • British fellows of the Royal Society
  • British male feminists

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