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# Title Date(s) Contributor(s) Description Description Collection ID Hagley ID Collection
1 Interview with Martin E. Cupery and Harry B. Dykstra, 2 August 1978 [audio] (part 2) 1978-08-02 Strange, Adeline Bassett Cook, 1917-2004 (Interviewer), Cupery, Martin E. (Martin Eli), 1901-1996 (Interviewee), Dykstra, Harold Ben, 1902-1986 (Interviewee) Martin E. Cupery and Harry B. Dykstra have a conversation with Cookie Strange. They primarily discuss their research with synthetic polymers, the discovery of Nylon, and "Purity Hall" at the DuPont Experimental Station. They also talk about Wallace Carothers's overall demeanor and how his gentleness and kindness made him easy to be around. Part 2.
Oral history interviews on Wallace Carothers (Accession 1994.311) AUD_1994311_B01_ID04 Oral history interviews on Wallace Carothers
2 Interview with Martin E. Cupery and Harry B. Dykstra, 2 August 1978 [audio] (part 1) 1978-08-02 Strange, Adeline Bassett Cook, 1917-2004 (Interviewer), Cupery, Martin E. (Martin Eli), 1901-1996 (Interviewee), Dykstra, Harold Ben, 1902-1986 (Interviewee) Martin E. Cupery and Harry B. Dykstra have a conversation with Cookie Strange. They primarily discuss their research with synthetic polymers, the discovery of Nylon, and "Purity Hall" at the DuPont Experimental Station. They also talk about Wallace Carothers's overall demeanor and how his gentleness and kindness made him easy to be around. Part 1.
Oral history interviews on Wallace Carothers (Accession 1994.311) AUD_1994311_B01_ID03 Oral history interviews on Wallace Carothers
3 Interview with Martin E. Cupery and Harry B. Dykstra, 2 August 1978 [transcript] 1978-08-02 Martin E. Cupery and Harry B. Dykstra have a conversation with Cookie Strange. They discuss their research with super polymers, the discovery of Nylon, and the DuPont Experimental Station. They also talk about Wallace Carothers's overall demeanor and how his gentleness and kindness made him easy to be around.
Carothers Oral History Project (Accession 1985) MSS_1985_01_01_03 Oral history interviews on Wallace Carothers
4 Interview with Gerard Bérchet, 1 August 1978 [audio] 1978-08-01 Gerard Bérchet talks about Wallace Carothers with Cookie Strange. He discusses Nylon and its various versions, including 66 and 6, 10, as well as other projects that he and Carothers were involved with at DuPont's Experimental Station.
Oral history interviews on Wallace Carothers (Accession 1994.311) AUD_1994311_B01_ID05 Oral history interviews on Wallace Carothers
5 Interview with Gerard Bérchet, 1 August 1978 [transcript] 1978-08-01 Strange, Adeline Bassett Cook, 1917-2004 (Interviewer), Berchet, Gerard J., 1902-1990 (Interviewee) Gerard Bérchet talks about Wallace Carothers with Cookie Strange. He discusses life in Paris, meeting Carothers, and his trip across the Atlantic to the United States. He also mentions Nylon and its various versions, including 66 and 6, 10, as well as other research projects that he was involved with at DuPont's Experimental Station.
Carothers Oral History Project (Accession 1985) MSS_1985_01_01_04 Oral history interviews on Wallace Carothers
6 Interview with Elizabeth Carothers Kyle, 3 July 1978 [transcript] 1978-07-03 Strange, Adeline Bassett Cook, 1917-2004 (Interviewer), Kyle, Elizabeth Carothers, 1907-1983 (Interviewee) Transcript of a telephone call between Elizabeth Carothers Kyle, younger sister to Wallace Carothers, and Cookie Strange. Mrs. Kyle talks about her childhood in Iowa, Wallace's general personality, his love of tennis and music, and his time at Tarkio College and the University of Illinois. She also discusses their sister, Isobel, and the close relationship Isobel shared with Wallace.
Carothers Oral History Project (Accession 1985) MSS_1985_01_01_05 Oral history interviews on Wallace Carothers
7 Interview with John "Jack" Raven Johnson, July 1978 [audio] (part 1) 1978 Jack Johnson discusses Wallace Carothers with Cookie Strange. He talks about Carothers's academic career, both as a student and teacher at the University of Illinois, the University of South Dakota, and Harvard University. He remembers that Carothers was called "Doc" both at the University of Illinois and later at DuPont. Johnson says he and Carothers's spent a lot of time together while in Illinois, mainly working in the chemistry lab. He talks about his and Carothers's trip to Europe in...
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Jack Johnson discusses Wallace Carothers with Cookie Strange. He talks about Carothers's academic career, both as a student and teacher at the University of Illinois, the University of South Dakota, and Harvard University. He remembers that Carothers was called "Doc" both at the University of Illinois and later at DuPont. Johnson says he and Carothers's spent a lot of time together while in Illinois, mainly working in the chemistry lab. He talks about his and Carothers's trip to Europe in 1926, where they attended a conference in Oxford, England and heard a lecture by the Prince of Wales (later King Edward VIII), and worked on research projects in Paris. While in Paris, they met fellow chemist Gerard Bérchet (1902-1990) and convinced him to immigrate to the United States. Johnson says Carothers was a voracious reader and a lover of music. He discusses three letters that that Carothers sent him while at Harvard and reads excepts to demonstrate Carothers's personality, particularly his sense of humor. Part 1.
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Oral history interviews on Wallace Carothers (Accession 1994.311) AUD_1994311_B01_ID06 Oral history interviews on Wallace Carothers
8 Interview with William "Bill" Mapel, July 1978 [audio] 1978 Interviewer Adeline Bassett Cook Strange (also known as A.B.C Strange or Cookie) recounts her conversations with William "Bill" Mapel and his wife, Evelyn Raines Mapel. Strange says Mr. Mapel was hesitant to talk about Carothers, and she believes he thought he would be breaking Carothers's confidence. Mapel described Carothers as the closest friend he ever had, and despite Carothers's reserved demeanor, there was an "aura" around him at DuPont and in Wilmington society. Overall, Strange...
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Interviewer Adeline Bassett Cook Strange (also known as A.B.C Strange or Cookie) recounts her conversations with William "Bill" Mapel and his wife, Evelyn Raines Mapel. Strange says Mr. Mapel was hesitant to talk about Carothers, and she believes he thought he would be breaking Carothers's confidence. Mapel described Carothers as the closest friend he ever had, and despite Carothers's reserved demeanor, there was an "aura" around him at DuPont and in Wilmington society. Overall, Strange believes that much of Carothers's life was controlled by Mapel's "aggressive interests and kindness," and that Carothers was amenable to this because of his insecurities.
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Oral history interviews on Wallace Carothers (Accession 1994.311) AUD_1994311_B01_ID02 Oral history interviews on Wallace Carothers
9 Interview with John and Elizabeth Miles, July 1978 [audio] 1978 Strange, Adeline Bassett Cook, 1917-2004 (Interviewer), Miles, John Blanchard, Jr., 1902-1990 (Interviewee), Miles, Elizabeth Colles Lankford, 1907-1995 (Interviewee) John and Elizabeth "Lib" Miles discuss Wallace Carothers, primarily focusing on his marriage to Helen Sweetman (1911-2000). Both John and Lib express their disapproval of Ms. Sweetman and believe the marriage was a mistake, recounting several stories to support their opinions. They talk about Carothers's general personality, including his love of drinking, music, and cheese, his insecurities, and his focus, intelligence, and kindness. Carothers's work with DuPont and Nylon, his battle with...
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John and Elizabeth "Lib" Miles discuss Wallace Carothers, primarily focusing on his marriage to Helen Sweetman (1911-2000). Both John and Lib express their disapproval of Ms. Sweetman and believe the marriage was a mistake, recounting several stories to support their opinions. They talk about Carothers's general personality, including his love of drinking, music, and cheese, his insecurities, and his focus, intelligence, and kindness. Carothers's work with DuPont and Nylon, his battle with depression, and his eventual suicide are also discussed.
Show less
Oral history interviews on Wallace Carothers (Accession 1994.311) AUD_1994311_B01_ID01 Oral history interviews on Wallace Carothers
10 Interview with John "Jack" Raven Johnson, July 1978 [audio] (part 2) 1978 Jack Johnson discusses Wallace Carothers with Cookie Strange. He talks about Carothers's academic career, both as a student and teacher at the University of Illinois, the University of South Dakota, and Harvard University. He remembers that Carothers was called "Doc" both at the University of Illinois and later at DuPont. Johnson says he and Carothers's spent a lot of time together while in Illinois, mainly working in the chemistry lab. He talks about his and Carothers's trip to Europe in...
Show more
Jack Johnson discusses Wallace Carothers with Cookie Strange. He talks about Carothers's academic career, both as a student and teacher at the University of Illinois, the University of South Dakota, and Harvard University. He remembers that Carothers was called "Doc" both at the University of Illinois and later at DuPont. Johnson says he and Carothers's spent a lot of time together while in Illinois, mainly working in the chemistry lab. He talks about his and Carothers's trip to Europe in 1926, where they attended a conference in Oxford, England and heard a lecture by the Prince of Wales (later King Edward VIII), and worked on research projects in Paris. While in Paris, they met fellow chemist Gerard Bérchet (1902-1990) and convinced him to immigrate to the United States. Johnson says Carothers was a voracious reader and a lover of music. He discusses three letters that that Carothers sent him while at Harvard and reads excepts to demonstrate Carothers's personality, particularly his sense of humor. Part 2.
Show less
Oral history interviews on Wallace Carothers (Accession 1994.311) AUD_1994311_B01_ID07 Oral history interviews on Wallace Carothers
11 Interview with John and Elizabeth Miles, July 1978 [transcript] 1978 A rough transcript of Cookie Strange's conversation with John and Elizabeth "Lib" Miles in July, 1978. The Miles' discuss Wallace Carothers, primarily focusing on his marriage to Helen Sweetman (1911-2000). Both John and Lib express their disapproval of Ms. Sweetman and believe the marriage was a mistake, recounting several stories to support their opinions. They talk about Carothers's general personality, including his love of drinking, music, and cheese, his insecurities, and his focus,...
Show more
A rough transcript of Cookie Strange's conversation with John and Elizabeth "Lib" Miles in July, 1978. The Miles' discuss Wallace Carothers, primarily focusing on his marriage to Helen Sweetman (1911-2000). Both John and Lib express their disapproval of Ms. Sweetman and believe the marriage was a mistake, recounting several stories to support their opinions. They talk about Carothers's general personality, including his love of drinking, music, and cheese, his insecurities, and his focus, intelligence, and kindness. Carothers's work with DuPont and Nylon, his battle with depression, and his eventual suicide are also discussed.
Show less
Carothers Oral History Project (Accession 1985) MSS_1985_01_01_01 Oral history interviews on Wallace Carothers
12 Interview with William "Bill" Mapel, July 1978 [transcript] 1978 Strange, Adeline Bassett Cook, 1917-2004 (Interviewer), Mapel, William, 1902-1984 (Interviewee) Interviewer Adeline Bassett Cook Strange (also known as A.B.C Strange or Cookie) recounts her conversations with William "Bill" Mapel and his wife, Evelyn Raines Mapel. Strange says Mr. Mapel was hesitant to talk about Carothers, and she believes he thought he would be breaking Carothers's confidence. Mapel described Carothers as the closest friend he ever had, and despite Carothers's reserved demeanor, there was an "aura" around him at DuPont and in Wilmington society. Overall, Strange...
Show more
Interviewer Adeline Bassett Cook Strange (also known as A.B.C Strange or Cookie) recounts her conversations with William "Bill" Mapel and his wife, Evelyn Raines Mapel. Strange says Mr. Mapel was hesitant to talk about Carothers, and she believes he thought he would be breaking Carothers's confidence. Mapel described Carothers as the closest friend he ever had, and despite Carothers's reserved demeanor, there was an "aura" around him at DuPont and in Wilmington society. Overall, Strange believes that much of Carothers's life was controlled by Mapel's "aggressive interests and kindness," and that Carothers was amenable to this because of his insecurities.
Show less
Carothers Oral History Project (Accession 1985) MSS_1985_01_01_02 Oral history interviews on Wallace Carothers
13 Roy Plunkett (right) reenacts invention of Teflon 1966 E.I. du Pont de Nemours & Company (originator) Chemists Roy Plunkett (right) and Robert McHarness (center) and Technician Jack Rebok re-enact the discovery of fluorocarbon polymers.
DuPont Company External Affairs Department photograph file (Accession 2004.268) AVD_2004268_P00000214 DuPont Company External Affairs Department photograph file, Teflon
14 The Development of Industrial Research in America to 1920 1962 Lewis, W. David (Walter David), 1931- (author) Eleutherian Mills-Hagley Foundation research reports (Accession 1645) MS1645_047 Eleutherian Mills-Hagley Foundation research reports
15 Perfume for rubber 1948-06 E.I. du Pont de Nemours & Company (originator) Aromatic chemist sniffs a sample. If suitable deodorant is added in right amount, odor of rubber will be masked.
DuPont Company Product Information photographs (Accession 1972.341) 1972341_0656 DuPont Product Information photographs
16 Conducting research at the Experimental Station 1948 E.I. du Pont de Nemours & Company (originator) DuPont Company Product Information photographs (Accession 1972.341) 1972341_4466 DuPont Product Information photographs
17 Burning liquid samples in Experimental Station laboratory 1946 E.I. du Pont de Nemours & Company (originator) Assemblies of flasks, bubbler absorption tubes and enclosed lamps make possible the burning of liquid samples and the collection of the gases formed. Here a chemist and laboratory assistants at the Experimental Station operate apparatus for determining sulfur in liquid samples.
DuPont Company Product Information photographs (Accession 1972.341) 1972341_4415 DuPont Product Information photographs
18 Perfume research at the New Brunswick, New Jersey laboratory 1944-04 E.I. du Pont de Nemours & Company (originator), Duryea, Drix (photographer) Theodore Hoffman, director of the DuPont perfume laboratories and an outstanding authority on perfumes, applies the last test to a bottle of perfume-which depends on the olfactory sense and not on formulas, at the New Brunswick, New Jersey factory of E.I. du Pont Nemours & Company. For perfume making is both an art and a science. The materials are supplied by he chemist-whether he extracts them from natural sources or creates synthetic components. But the blending calls for the perfumer who...
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Theodore Hoffman, director of the DuPont perfume laboratories and an outstanding authority on perfumes, applies the last test to a bottle of perfume-which depends on the olfactory sense and not on formulas, at the New Brunswick, New Jersey factory of E.I. du Pont Nemours & Company. For perfume making is both an art and a science. The materials are supplied by he chemist-whether he extracts them from natural sources or creates synthetic components. But the blending calls for the perfumer who works by inspiration. It takes a great artist to create a rare perfume, for not enough is known of the perfumers work to proceed by scientific formula. Until the lilac odor was synthesized-one of the outstanding achievements of the chemical laboratory in perfumery-there was no lilac perfume, for no satisfactory means has ever been found of extracting this natural oil. Moreover, there is no known natural extract so sweet or so peculiarly powerful in odor as synthetic lilac. Chemistry converts volatile turpentine into fragrant lilac rivaling natures illusive floral fragrance.
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DuPont Company Product Information photographs (Accession 1972.341) 1972341_0652 DuPont Product Information photographs
19 Perfume research at the New Brunswick, New Jersey laboratory 1942-04-22 E.I. du Pont de Nemours & Company (originator), Duryea, Drix (photographer) About two dozen constituents, besides terpineol, combine to make synthetic lilac perfume. Mr. Theodore Hoffman, director of the DuPont perfume laboratories and an outstanding authority on perfumes, is shown at the scales of his laboratory compounding the ingredients of lilac perfume. Until the lilac odor was synthesized-one of the outstanding achievements of the chemical laboratory in perfumery-there was no lilac perfume, for no satisfactory means has ever been found of extracting this...
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About two dozen constituents, besides terpineol, combine to make synthetic lilac perfume. Mr. Theodore Hoffman, director of the DuPont perfume laboratories and an outstanding authority on perfumes, is shown at the scales of his laboratory compounding the ingredients of lilac perfume. Until the lilac odor was synthesized-one of the outstanding achievements of the chemical laboratory in perfumery-there was no lilac perfume, for no satisfactory means has ever been found of extracting this natural oil. Moreover, there is no known natural extract so sweet or so peculiarly powerful in odor as synthetic lilac. Chemistry converts volatile turpentine into fragrant lilac rivaling natures illusive floral fragrance.
Show less
DuPont Company Product Information photographs (Accession 1972.341) 1972341_0651 DuPont Product Information photographs
20 Julian Hill recreating synthesis of first completely synthetic fiber 1941 E.I. du Pont de Nemours & Company (originator) Probably the most dramatic moment in DuPont research history is re-enacted above-the birth of the first completely synthetic fiber, impractical for commercial use but true forerunner of nylon itself. Here chemist Julian Hill shows how he pulled molten sample of material from a laboratory test tube at the company's Experimental Station near Wilmington, Delaware. The molasses-like mass stuck to the glass stirring rod and was drawn out into a thin fiber.
DuPont Company Product Information photographs (Accession 1972.341) 1972341_1154 DuPont Product Information photographs
21 Conducting synthetic textile research at the E.I. du Pont de Nemours & Company Experimental Station 1941 E.I. du Pont de Nemours & Company (originator), Rittase, William R. (photographer) DuPont Company Product Information photographs (Accession 1972.341) 1972341_4420 DuPont Product Information photographs
22 Determining the degree of gloss 1938-02 E.I. du Pont de Nemours & Company (originator) To determine the degree of gloss in a lacquer or finish, du Pont chemists use a device that measures the amount of light reflected. The light from a constant source is thrown back from the panel into the telescope tube. One half of the 'eyepiece' is illuminated by this reflected radiation, with the other half lighted by a small bulb in the photometer tube attached to the side of the telescope. This light is passed back and forth in the tube until the brightness of the two section meet. The...
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To determine the degree of gloss in a lacquer or finish, du Pont chemists use a device that measures the amount of light reflected. The light from a constant source is thrown back from the panel into the telescope tube. One half of the 'eyepiece' is illuminated by this reflected radiation, with the other half lighted by a small bulb in the photometer tube attached to the side of the telescope. This light is passed back and forth in the tube until the brightness of the two section meet. The distance of the light from the 'eyepiece' is then a measure of the amount of light reflected or the gloss.
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DuPont Company Product Information photographs (Accession 1972.341) 1972341_2784 DuPont Product Information photographs
23 Determining the drying time of lacquer 1937-12 E.I. du Pont de Nemours & Company (originator) How fast a lacquer or finish will dry is determined by the use of plate glass discs coated with the material to be tested and revolved slowly while a thin trickle of sand falls on them from a cone shaped container. It has been found by DuPont chemists that the point at which the sand no longer adheres accurately determines the drying time.
DuPont Company Product Information photographs (Accession 1972.341) 1972341_2782 DuPont Product Information photographs
24 Research laboratory at the Experimental Station 1935-11-04 E.I. du Pont de Nemours & Company (originator) DuPont Company Product Information photographs (Accession 1972.341) 1972341_4467 DuPont Product Information photographs
25 Dr. Hale Charch, pioneer in cellophane 1924 E.I. du Pont de Nemours & Company (originator) The late Dr. Hale Charch, pioneer in the development of moisture-proof cellophane, working in DuPont laboratory in 1924.
DuPont Company External Affairs Department photograph file (Accession 2004.268) AVD_2004268_P00001077 DuPont Company External Affairs Department photograph file

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