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William A. Hammond

William A. Hammond is a biology 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 William A. Hammond rather than just read about it. In short: William Alexander Hammond (28 August 1828 – 5 January 1900) was an American military physician and neurologist. During the American Civil War he was the eleventh Surgeon General of the United States Army (1862–1864) and the founder of the Army Medical Museum (now the National Museum of Health and Medicine).

William A. Hammond — main illustration
William A. Hammond — illustration

Key takeaways

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

Reference excerpt

William Alexander Hammond (28 August 1828 – 5 January 1900) was an American military physician and neurologist. During the American Civil War he was the eleventh Surgeon General of the United States Army (1862–1864) and the founder of the Army Medical Museum (now the National Museum of Health and Medicine). He was the first American physician to devote himself entirely to neurology, the author of the first American treatise about neurology, and one of the founders of the American Neurological Association.

Biography Born in Annapolis (Maryland), Hammond grew up in Harrisburg (Pennsylvania). He received his M.D. from New York University at the age of 20. After his internship and a few months in private practice he became assistant-surgeon in the United States Army, serving from 1849 to 1860. He was first sent to New Mexico and took part in the Sioux Wars. While on sick leave, he visited military hospitals in Europe. He conducted research over many years and the resulting paper was awarded a prize by the American Medical Association in 1857. With a common interest in poisons acting on the nervous system (among them snake venom), he wrote a paper with Silas Weir Mitchell that was published in 1859. He was elected to the American Philosophical Society that same year. While serving at Fort Riley as medical director, Hammond also collected biological specimens. In 1860 he accepted a chair of anatomy and physiology at the University of Maryland School of Medicine in Baltimore and left the army.

Civil War When the American Civil War broke out Hammond spent some time at the Baltimore infirmary then joined the army (without recognition of his past service) on 28 May 1861, a month a half after the beginning of the hostilities. Surgeon General Clement Finley soon transferred him to West Virginia under the command of General William Starke Rosecrans command "to lessen his visibility". There Hammond met Jonathan Letterman. Hammond worked with Letterman and Rosecrans on the design of a new ambulance wagon. The atmosphere in the upper levels of medical services was then one of internal strife and personal conflicts. Hammond—a tall and imposing young man—was no man of intrigue, nor even, according to all accounts, a very flexible person. However, the situation offered him the possibility for advancement. When Finley, the 10th Surgeon General, was fired after an argument with Secretary of War Edwin M. Stanton, Abraham Lincoln, against Stanton's advice and the normal rules of promotion, named the 34-year-old Hammond to succeed him with the rank of brigadier general. Hammond became Surgeon General of the Army on 25 April 1862, less than a year after rejoining the army.

Surgeon General Hammond launched a number of reforms. He raised the requirements for admission into the Army Medical Corps. The number of hospitals was greatly increased and he paid close attention to ventilation He created Satterlee Hospital (which had up to 4,500 beds in hundreds of tents). Hospitals were ordered to maintain much more complete records. In Washington he founded the National Museum of Health and Medicine (then called Army Medical Museum) and put John H. Brinton in charge. Hammond proposed a permanent military medical corps, a permanent hospital for the military, and centralized issuance of medications. He recommended that "the service age of recruits be fixed by law at twenty years". He successfully transferred the responsibility for sanitary trains from private companies to the government and personally oversaw the building of the wagons. He promoted Letterman and supported his reforms on the front. On his initiative, Letterman's ambulance system was thoroughly tested before being extended to the whole Union. Mortality decreased significantly. Efficiency increased, as Hammond promoted people on the basis of competence, not rank or connections, and his initiatives were positive and timely.

Removal from office On 4 May 1863 Hammond banned the mercury compound calomel from army supplies, as he believed it to be neither safe nor effective (he was later proved correct). He thought it dangerous to make an already debilitated patient vomit. A "Calomel Rebellion" ensued, as many of his colleagues had no alternative treatments and resented the move as an infringement on their liberty of practice. Hammond's arrogant nature did not help him solve the problem, and his relations with Secretary of War Stanton became strained. On 3 September 1863 he was sent on a protracted "inspection tour" to the South, which effectively removed him from office. Joseph Barnes, a friend of Stanton's and his personal physician, became acting Surgeon General. Hammond demanded to be either reinstated or court-martialed. A court-martial found him guilty of "irregularities" in the purchase of medical furniture (Stanton "used false data"). Hammond was dismissed on 18 August 1864.

… excerpt ends here. Continue reading the full article.

Illustrations

William A. Hammond illustration

Worked examples

Example 1 — a first encounter with William A. Hammond

Start with the simplest possible case. Write down what William A. Hammond claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, 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 William A. Hammond 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 William A. Hammond 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 William A. Hammond

In research
William A. Hammond appears in biology 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 William A. Hammond 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
William A. Hammond is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1828 births, 1900 deaths, American neuroscientists, so understanding it makes those chapters shorter.
In everyday life
Look for William A. Hammond 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 William A. Hammond in 20 minutes

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

Frequently asked questions

What is William A. Hammond in simple terms?

William Alexander Hammond (28 August 1828 – 5 January 1900) was an American military physician and neurologist. During the American Civil War he was the eleventh Surgeon General of the United States Army (1862–1864) and the founder of the Army Medical Museum (now the National Museum of Health and M…

Why does William A. Hammond matter?

Because it connects several biology 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 William A. Hammond?

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 William A. Hammond.

Tags

  • 1828 births
  • 1900 deaths
  • American neuroscientists
  • American skeptics
  • Anomalistic psychology
  • Burials at Arlington National Cemetery
  • Critics of Spiritualism
  • Fasting researchers
  • New York University Grossman School of Medicine alumni
  • People from Annapolis, Maryland
  • People of Pennsylvania in the American Civil War
  • Surgeons general of the United States Army

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