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Frederik Ruysch
Frederik Ruysch, by Jurriaen Pool.jpg
Frederik Ruysch, by his son-in-law Juriaen Pool
Born (1638-03-28)March 28, 1638
Died February 22, 1731(1731-02-22) (aged 92)
Nationality Dutch
Alma mater University of Leiden
Spouse(s) Maria Post (1643–1720)
Children Rachel Ruysch (*1664, painter)
Anna Ruysch (*1666, painter)
Scientific career
Fields botany, anatomy
De anatomische les van Dr. Frederick Ruysch
The Anatomy Lesson of Dr. Frederick Ruysch by Jan van Neck (1683). Amsterdam Museum.

Frederik Ruysch (March 28, 1638 – February 22, 1731) was a famous Dutch botanist and anatomist. He is best known for inventing special ways to preserve body parts. He used these methods to create amazing displays, almost like art, using human and animal specimens.

His collection included over 2,000 items, such as parts of bodies, animals, and plants. He preserved them by drying them or using a special liquid to keep them from decaying. Ruysch also discovered important things like valves in the lymphatic system (which helps your body fight germs) and a special organ in snakes called the vomeronasal organ. He was also the first to describe a disease now known as Hirschsprung's disease.

Life Story

Frederik Ruysch was born in The Hague, Netherlands. His father worked for the government. Frederik started his career as an apprentice at a pharmacy. He became very interested in anatomy, which is the study of the body's structure.

He went on to study at the University of Leiden with a famous teacher named Franciscus Sylvius. It was hard and costly to get bodies for studying anatomy back then. This led Ruysch to find new and better ways to prepare and preserve body parts. In 1661, he married Maria Post. He finished his studies in 1664, writing about a lung condition called pleuritis.

In 1667, Ruysch became a main teacher for the Amsterdam surgeons' guild. A year later, he became the chief instructor for the city's midwives. From then on, midwives had to pass an exam given by Ruysch before they could work. In 1679, he became an expert for court cases in Amsterdam. Later, in 1685, he became a professor of botany at the Hortus Botanicus Amsterdam, a famous botanical garden.

Amazing Preservation Techniques

Frederik Ruysch spent a lot of time researching human anatomy and how the body works. He became famous for his incredible collection of preserved body parts. His main skill was preparing and preserving specimens using a secret liquid he called liquor balsamicum. He was one of the first to use a method called arterial embalming for this purpose.

He developed a special injection using a red mineral called cinnabar. This injection made many of his specimens look reddish and almost alive. Thanks to this technique, people could see even the tiniest blood vessels. This was a huge step forward in the 17th century. Ruysch's methods also allowed bodies to be preserved for much longer. This meant that his anatomy lessons could last longer and even happen during warmer months.

Ruysch's Special Museum

Frederik Ruysch created his own anatomy museum inside his home. This museum became a very popular place for tourists in Amsterdam and was known all over the world. Even though it was his private collection, Ruysch opened it to the public. Visitors paid a fee and took guided tours through five different rooms.

His collection was organized into three types:

  • Dry preparations: These included skeletons and dried organs.
  • Wet injection preparations: These were preserved parts in bottles with lids that could be easily removed.
  • Wet preparations in decorated jugs: These were also preserved in liquid but were in fancy containers that couldn't be handled easily.

A unique part of his collection was the large number of infant and fetal bodies, making up about one-third of all his specimens. He bought most of these from midwives he worked with, usually after a child had died or a pregnancy ended in miscarriage.

Ruysch often dressed these infant bodies in tiny clothes, bonnets, or added glass eyes. This helped to hide any marks from the preservation process and made the displays look more lifelike. While some of his displays showed body differences, Ruysch's main goal was to create beautiful works of art that showed how perfect the human body could be. His daughter, Rachel Ruysch, who became a famous painter, helped him decorate the collection with flowers, seashells, and delicate lace.

By the time Ruysch was 24, his museum was very popular. Many important visitors came to see it. In 1697, Peter the Great, the ruler of Russia, visited Ruysch's museum. Peter was very interested in science. Ruysch even taught him how to catch and preserve butterflies. They also shared an interest in lizards.

In 1717, during Peter the Great's second visit, he bought Ruysch's entire collection for 30,000 guilders (a type of money back then). This included the secret recipe for the preserving liquid! Ruysch didn't want to help pack and label everything, so another scientist, Albertus Seba, took over a month to do it. The collection was sent to Russia in two ships because of a war.

After selling his first collection, Ruysch immediately started a new one in his house in Amsterdam. After he passed away, this second collection was sold to August the Strong, a powerful ruler. While some of his preserved specimens still exist today, none of his famous artistic displays have survived. We only know about them from old drawings.

Frederik Ruysch was chosen as a Fellow of the Royal Society in 1715, which is a very important scientific group. His son-in-law, Jurriaen Pool, painted his portrait.

In 1760, many years after Ruysch's death, a botanist named Jacq. named a group of flowering plants from South America Ruyschia in his honor.

Modern Day

Today, you can still see parts of Ruysch's amazing collection. It is kept at the Peter the Great Museum of Anthropology and Ethnography in Saint Petersburg, Russia. The museum has over 900 items from Ruysch's original collection.

See also

Kids robot.svg In Spanish: Frederik Ruysch para niños

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