Benjamin Silliman
Encyclopedia
Benjamin Silliman was an American
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 chemist
Chemist
A chemist is a scientist trained in the study of chemistry. Chemists study the composition of matter and its properties such as density and acidity. Chemists carefully describe the properties they study in terms of quantities, with detail on the level of molecules and their component atoms...

, one of the first American professors of science (at Yale University
Yale University
Yale University is a private, Ivy League university located in New Haven, Connecticut, United States. Founded in 1701 in the Colony of Connecticut, the university is the third-oldest institution of higher education in the United States...

), and the first to distill petroleum.

Early life

Silliman was born in a tavern in North Stratford, now Trumbull
Trumbull, Connecticut
Trumbull, a town in Fairfield County, Connecticut in the New England region of the United States, is bordered by the towns of Monroe, Shelton, Stratford, Bridgeport, Fairfield and Easton along Connecticut's Gold Coast. The population was 36,018 according to the 2010 census.Family Circle magazine...

, Connecticut
Connecticut
Connecticut is a state in the New England region of the northeastern United States. It is bordered by Rhode Island to the east, Massachusetts to the north, and the state of New York to the west and the south .Connecticut is named for the Connecticut River, the major U.S. river that approximately...

, a few months after his mother, Mary (Fish) Silliman (widow of John Noyes), fled for her life from their Fairfield
Fairfield, Connecticut
Fairfield is a town located in Fairfield County, Connecticut, United States. It is bordered by the towns of Bridgeport, Trumbull, Easton, Redding and Westport along the Gold Coast of Connecticut. As of the 2010 census, the town had a population of 59,404...

, Connecticut, home to escape two thousand invading British troops that burned Fairfield center to the ground. The British forces had taken his father, General Gold Selleck Silliman
Gold Selleck Silliman
Gold Selleck Silliman was born in Fairfield, Connecticut, graduated from Yale University and practiced law and served as a crown attorney before the American Revolution...

, prisoner in May of 1779.

Education

He was educated at Yale
Yale University
Yale University is a private, Ivy League university located in New Haven, Connecticut, United States. Founded in 1701 in the Colony of Connecticut, the university is the third-oldest institution of higher education in the United States...

, receiving an A.B. degree in 1796 and an A.M. in 1799. He studied law with Simeon Baldwin
Simeon Baldwin
Simeon Baldwin was son-in-law of Roger Sherman, father of Connecticut Governor Roger Sherman Baldwin and the grandfather of Connecticut Governor Simeon Eben Baldwin. He was born in Norwich, Connecticut. He completed preparatory studies Simeon Baldwin (December 14, 1761 – May 26, 1851) was...

 from 1798 to 1799 and became a tutor at Yale from 1799 to 1802. He was admitted to the bar in 1802. President Timothy Dwight IV
Timothy Dwight IV
Timothy Dwight was an American academic and educator, a Congregationalist minister, theologian, and author...

 of Yale proposed that he equip himself to teach in chemistry and natural history and accept a new professorship at the university. Silliman studied chemistry with Professor James Woodhouse at the University of Pennsylvania
University of Pennsylvania
The University of Pennsylvania is a private, Ivy League university located in Philadelphia, Pennsylvania, United States. Penn is the fourth-oldest institution of higher education in the United States,Penn is the fourth-oldest using the founding dates claimed by each institution...

 in Philadelphia and delivered his first lectures in chemistry at Yale in 1804. These lectures were the first science lectures ever given at Yale. In 1805, he traveled to Edinburgh
Edinburgh
Edinburgh is the capital city of Scotland, the second largest city in Scotland, and the eighth most populous in the United Kingdom. The City of Edinburgh Council governs one of Scotland's 32 local government council areas. The council area includes urban Edinburgh and a rural area...

 for further study.

Career

Returning to New Haven
New Haven, Connecticut
New Haven is the second-largest city in Connecticut and the sixth-largest in New England. According to the 2010 Census, New Haven's population increased by 5.0% between 2000 and 2010, a rate higher than that of the State of Connecticut, and higher than that of the state's five largest cities, and...

, he studied its geology
Geology
Geology is the science comprising the study of solid Earth, the rocks of which it is composed, and the processes by which it evolves. Geology gives insight into the history of the Earth, as it provides the primary evidence for plate tectonics, the evolutionary history of life, and past climates...

, and made a chemical analysis of the meteorite
Weston meteorite
The Weston meteorite is a meteorite which fell to earth above the town of Weston, Connecticut at approximately 6:30 in the morning on December 14, 1807. The meteor fall was widely witnessed and reported in newspaper accounts at the time...

 that fell near Weston, Connecticut
Weston, Connecticut
Weston is a town in Fairfield County, Connecticut. The population was 10,179 at the 2010 census. The town is served by Route 57 and Route 53, both of which run through the town center. About 19% of the town's workforce commutes to New York City, about to the southwest.Like many towns in...

, publishing the first scientific account of any American meteorite. He lectured publicly at New Haven in 1808 and came to discover many of the constituent elements of many mineral
Mineral
A mineral is a naturally occurring solid chemical substance formed through biogeochemical processes, having characteristic chemical composition, highly ordered atomic structure, and specific physical properties. By comparison, a rock is an aggregate of minerals and/or mineraloids and does not...

s. Some time around 1818, Ephraim Lane took some samples of rocks he found at an area called Saganawamps, now a part of the Old Mine Park Archeological Site
Old Mine Park Archeological Site
The Old Mine Park Archaeological Site is a historic site in the Long Hill, Trumbull, Connecticut section of Trumbull, Connecticut. It was mined from 1828 to 1920 and during 1942-1946...

 in Trumbull, Connecticut to Silliman for identification. Silliman reported, in his new American Journal of Science
American Journal of Science
The American Journal of Science is the United States of America's longest-running scientific journal, having been published continuously since its conception in 1818 by Professor Benjamin Silliman, who edited and financed it himself...

, that he had identified tungsten
Tungsten
Tungsten , also known as wolfram , is a chemical element with the chemical symbol W and atomic number 74.A hard, rare metal under standard conditions when uncombined, tungsten is found naturally on Earth only in chemical compounds. It was identified as a new element in 1781, and first isolated as...

, tellurium, topaz
Topaz
Topaz is a silicate mineral of aluminium and fluorine with the chemical formula Al2SiO42. Topaz crystallizes in the orthorhombic system and its crystals are mostly prismatic terminated by pyramidal and other faces.-Color and varieties:...

 and fluorite
Fluorite
Fluorite is a halide mineral composed of calcium fluoride, CaF2. It is an isometric mineral with a cubic habit, though octahedral and more complex isometric forms are not uncommon...

 in the rocks. In 1837, the first (and at the time only) prismatic barite ore of tungsten
Tungsten
Tungsten , also known as wolfram , is a chemical element with the chemical symbol W and atomic number 74.A hard, rare metal under standard conditions when uncombined, tungsten is found naturally on Earth only in chemical compounds. It was identified as a new element in 1781, and first isolated as...

 in the United States was discovered at the mine. The mineral sillimanite
Sillimanite
Sillimanite is an alumino-silicate mineral with the chemical formula Al2SiO5. Sillimanite is named after the American chemist Benjamin Silliman . It was first described in 1824 for an occurrence in Chester, Middlesex County, Connecticut, USA....

 was named after Silliman in 1850. Upon the founding of the Medical School
Yale School of Medicine
The Yale School of Medicine at Yale University is a private medical school located in New Haven, Connecticut, U.S. It was founded in 1810 as The Medical Institution of Yale College, and formally opened its doors in 1813....

, he also taught there as one of the founding faculty members. As professor emeritus, he delivered lectures at Yale on geology until 1855; in 1854, he became the first person to fractionate petroleum
Petroleum
Petroleum or crude oil is a naturally occurring, flammable liquid consisting of a complex mixture of hydrocarbons of various molecular weights and other liquid organic compounds, that are found in geologic formations beneath the Earth's surface. Petroleum is recovered mostly through oil drilling...

 by distillation.

1807 meteor

At 6:30 in the morning of December 14, 1807, a blazing fireball about two-thirds the size of the moon, was seen traveling southwards by early risers in Vermont and Massachusetts. Three loud explosions were heard over the town of Weston
Weston, Connecticut
Weston is a town in Fairfield County, Connecticut. The population was 10,179 at the 2010 census. The town is served by Route 57 and Route 53, both of which run through the town center. About 19% of the town's workforce commutes to New York City, about to the southwest.Like many towns in...

 in Fairfield County, Connecticut. Stone fragments fell in at least 6 places. The largest and only unbroken stone of the Weston fall, which weighed 36.5 pounds (16.5 kilograms), was found some days after Silliman and Kingsley had spent several fruitless hours hunting for it. The owner, a Trumbull
Trumbull, Connecticut
Trumbull, a town in Fairfield County, Connecticut in the New England region of the United States, is bordered by the towns of Monroe, Shelton, Stratford, Bridgeport, Fairfield and Easton along Connecticut's Gold Coast. The population was 36,018 according to the 2010 census.Family Circle magazine...

 farmer named Elijah Seeley, was urged to present it to Yale by local people who had met the professors during their investigation, but he insisted on putting it up for sale. It was purchased by Colonel George Gibbs for his large and famous collection of minerals; when the collection became the property of Yale in 1825, Silliman finally acquired this stone; the only specimen of the Weston meteorite that remains in the Yale Peabody Museum collection today.

Family

His first marriage was on 17 September 1809 to Harriet Trumbull, daughter of Connecticut governor Jonathan Trumbull, Jr.
Jonathan Trumbull, Jr.
Jonathan Trumbull, Jr. was an American politician who served as the second Speaker of the United States House of Representatives....

, who was the son of Governor Jonathan Trumbull, Sr. of Connecticut, a hero of the American Revolution
American Revolution
The American Revolution was the political upheaval during the last half of the 18th century in which thirteen colonies in North America joined together to break free from the British Empire, combining to become the United States of America...

. Silliman and his wife had four children: one daughter married Professor Oliver P. Hubbard, another married Professor James Dwight Dana
James Dwight Dana
James Dwight Dana was an American geologist, mineralogist and zoologist. He made pioneering studies of mountain-building, volcanic activity, and the origin and structure of continents and oceans around the world.-Early life and career:...

; and youngest daughter Julia married Edward Whiting Gilman, brother of Yale graduate and educator Daniel Coit Gilman
Daniel Coit Gilman
Daniel Coit Gilman was an American educator and academician, who was instrumental in founding the Sheffield Scientific School at Yale College, and who subsequently served as one of the earliest presidents of the University of California, the first president of Johns Hopkins University, and as...

. His son Benjamin Silliman Jr.
Benjamin Silliman Jr.
Benjamin Silliman, Jr. was a professor of chemistry at Yale University and instrumental in developing the oil industry....

, also a professor of chemistry at Yale, wrote a report that convinced investors to back George Bissell's
George Bissell (industrialist)
George Henry Bissell is often considered the father of the American oil industry. He was born in Hanover, New Hampshire, the son of Isaac Bissell and Nancy Wemple....

 seminal search for oil. His second marriage was in 1851 to Mrs. Sarah Isabella (McClellan) Webb, daughter of John McClellan. Silliman died at New Haven and is buried in Grove Street Cemetery.

Legacy

Silliman deemed slavery an "enormous evil" but also favored colonization of free African Americans in Liberia, serving as a board member of the Connecticut colonization society between 1828 and 1835. He was a member of the American Association for the Advancement of Science
American Association for the Advancement of Science
The American Association for the Advancement of Science is an international non-profit organization with the stated goals of promoting cooperation among scientists, defending scientific freedom, encouraging scientific responsibility, and supporting scientific education and science outreach for the...

. He founded and edited the American Journal of Science
American Journal of Science
The American Journal of Science is the United States of America's longest-running scientific journal, having been published continuously since its conception in 1818 by Professor Benjamin Silliman, who edited and financed it himself...

, and was appointed one of the corporate members of the National Academy of Sciences
United States National Academy of Sciences
The National Academy of Sciences is a corporation in the United States whose members serve pro bono as "advisers to the nation on science, engineering, and medicine." As a national academy, new members of the organization are elected annually by current members, based on their distinguished and...

 by the United States Congress
United States Congress
The United States Congress is the bicameral legislature of the federal government of the United States, consisting of the Senate and the House of Representatives. The Congress meets in the United States Capitol in Washington, D.C....

.

Silliman College
Silliman College
Silliman College is a residential college at Yale University. It opened in September 1940 as the last of the original ten residential colleges, and includes buildings that were constructed as early as 1901...

, one of Yale's residential college
Residential college
A residential college is an organisational pattern for a division of a university that places academic activity in a community setting of students and faculty, usually at a residence and with shared meals, the college having a degree of autonomy and a federated relationship with the overall...

s, is named for him, as is the mineral Sillimanite
Sillimanite
Sillimanite is an alumino-silicate mineral with the chemical formula Al2SiO5. Sillimanite is named after the American chemist Benjamin Silliman . It was first described in 1824 for an occurrence in Chester, Middlesex County, Connecticut, USA....

.

External links


See also

  • Petroleum
    Petroleum
    Petroleum or crude oil is a naturally occurring, flammable liquid consisting of a complex mixture of hydrocarbons of various molecular weights and other liquid organic compounds, that are found in geologic formations beneath the Earth's surface. Petroleum is recovered mostly through oil drilling...

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