Rediscovery of the Elements: Rhenium and Technetium (open access)

Rediscovery of the Elements: Rhenium and Technetium

Article describing the discovery of rhenium and technetium by Walter Karl Friedrich Noddack and Ida Eva Noddack-Tacke. Information regarding pertinent locations is included.
Date: Winter 2013
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
System: The UNT Digital Library
Rediscovery of the Elements: Cronstedt and Nickel (open access)

Rediscovery of the Elements: Cronstedt and Nickel

Article describing Axel Fredrik Cronstedt and his discovery of nickel. Information regarding pertinent locations is included.
Date: Summer 2014
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
System: The UNT Digital Library
Rediscovery of the Elements: Joseph Black. Magnesia and Fixed Air (open access)

Rediscovery of the Elements: Joseph Black. Magnesia and Fixed Air

Article describing Joseph Black and his discovery of magnesia and fixed air. The authors toured Edinburgh, Scotland in search of locations important to Black, providing the reader with maps and historical information regarding the sites.
Date: Autumn 2014
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
System: The UNT Digital Library
Rediscovery of the Elements: Daniel Rutherford, Nitrogen, and the Demise of Phlogiston (open access)

Rediscovery of the Elements: Daniel Rutherford, Nitrogen, and the Demise of Phlogiston

Article describing Daniel Rutherford's discovery of nitrogen. The article also details the work of other scientists revolving around the discovery of nitrogen.
Date: Spring 2015
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
System: The UNT Digital Library
Rediscovery of the Elements: The Rare Earths - The Beginnings (open access)

Rediscovery of the Elements: The Rare Earths - The Beginnings

This article explores the rare earths, the chemically similar elements that occupy the f-block of the Periodic Table and the Group III chemical family. The articles shows the locations that certain rare earths were originally found. It also gives details on where the elements can be found currently, as well as major production areas. The cover of the Fall 2015 Hexagon journal (Vol. 106, Issue 3) features the Mountain Pass rare earth ore body in Southern California, which is mentioned in the article on pages 40-45 of the journal. A description of the photo on the cover of the journal can be found on page 38.
Date: Autumn 2015
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
System: The UNT Digital Library
Rediscovery of the Elements: The Rare Earths - The Confusing Years (open access)

Rediscovery of the Elements: The Rare Earths - The Confusing Years

This article gives a timeline of research conducted on the rare earths, 17 elements found in the f-block and Group III chemical family of the Periodic Table. It covers discoveries made after the success of Swedish chemist, Carl Gustaf Mosander. The article describes the categorization of the rare earths that took place after Mosander's time, as well as separation techniques that developed.
Date: Winter 2015
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
System: The UNT Digital Library
Rediscovery of the Elements: Sir Humphry Davy and the Alkalis (open access)

Rediscovery of the Elements: Sir Humphry Davy and the Alkalis

Article provides information on the history of alkalis, particularly discoveries associated with potassium and sodium. The article also gives information on Humphry Davy, the first person to prepare alkalis in elemental form.
Date: Summer 2015
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
System: The UNT Digital Library
Rediscovery of the Elements: The Noble Gases--Rayleigh and Ramsay (open access)

Rediscovery of the Elements: The Noble Gases--Rayleigh and Ramsay

Article describing the discovery of argon, helium, and other inert gases by Lord Rayleigh, Sir William Ramsay, and other collaborators. Ramsay also characterized the noble gases and classified them within the structure of the Periodic Table of Elements.
Date: Autumn 2012
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
System: The UNT Digital Library
Rediscovery of the Elements: Tellurium and Fata Baii (Fascebanya), Romania. (open access)

Rediscovery of the Elements: Tellurium and Fata Baii (Fascebanya), Romania.

Article describing the discovery of the element tellurium. The authors travel through Romania to visit the Transylvanian mine where tellurium was discovered. They also visit the Brukenthal Museum of Sibiu and describe the museum's mineral collection.
Date: Autumn 2000
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
System: The UNT Digital Library
Rediscovery of the Elements: Titanium, Manaccan, Cornwall, England (open access)

Rediscovery of the Elements: Titanium, Manaccan, Cornwall, England

Article wherein James and Virginia Marshall visit Manaccan, England, to explore the site where titanium was first discovered. The area is described, as well as the man who discovered titanium, Reverend William Gregor.
Date: Spring 2001
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
System: The UNT Digital Library
Rediscovery of the Elements: Germanium (open access)

Rediscovery of the Elements: Germanium

Article recounting the history of the element Germanium, including background material on mining in Germany and the isolation of Germanium by Clemens A. Winkler. Tourist information is provided regarding Winkler's laboratory and mines open to the public as museums.
Date: Summer 2001
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
System: The UNT Digital Library
Rediscovery of the Elements: Montpellier and Bromine (open access)

Rediscovery of the Elements: Montpellier and Bromine

Article recounting the history of the element Bromine, including its discovery in the salt lagoons of the Montpellier region of France by Antoine-Jérome Balard. Maps of the region and of Balard's birthplace are presented.
Date: Autumn 2001
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
System: The UNT Digital Library
Rediscovery of the Elements: Thorium (open access)

Rediscovery of the Elements: Thorium

Article recounting the discovery of the element Thorium in Norway by Hans Morten Thrane Esmark. Maps and tourist information regarding the area are provided.
Date: Winter 2001
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
System: The UNT Digital Library
Rediscovery of the Elements: Althofen, Austria and Auer von Welsbach (open access)

Rediscovery of the Elements: Althofen, Austria and Auer von Welsbach

Article recounting a visit to sites related to Baron Carl Auer von Welsbach, discoverer of lutetium and ytterbium and inventor of the incandescent "Welsbach mantle." Maps and tourist information are provided regarding the Welsbach Museum in Treibach, Austria.
Date: Spring 2002
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
System: The UNT Digital Library
Rediscovery of the Elements: Phosphoro di Bologna (open access)

Rediscovery of the Elements: Phosphoro di Bologna

Article recounting a visit to sites related to the discovery of phosphorescent stone (barium sulfide) in Bologna, Italy. Maps with driving directions are included.
Date: Summer 2002
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
System: The UNT Digital Library
Rediscovery of the Elements: Strontium (open access)

Rediscovery of the Elements: Strontium

Article describing the history of the element strontium from its discovery in Strontian, Scotland, to its early uses in English medicine. Maps with directions and photographs of pertinent locations are included.
Date: Autumn 2002
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
System: The UNT Digital Library
Rediscovery of the Elements: Gallium (open access)

Rediscovery of the Elements: Gallium

Article describing the discovery of the element gallium. The authors travel to sites pertinent to the history of gallium, including the home and laboratory of its discoverer and the location from which it was procured.
Date: Winter 2002
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
System: The UNT Digital Library
Rediscovery of the Elements: Riddarhyttan, Sweden (open access)

Rediscovery of the Elements: Riddarhyttan, Sweden

Article describing the authors' tour through Riddarhyttan, Sweden, to visit the areas where cerium and cobalt were discovered. Maps and photographs of pertinent locations are located as well as a history of the area and the elements discovered there.
Date: Spring 2003
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
System: The UNT Digital Library
Rediscovery of the Elements: Europium. Eugène Demarcay (open access)

Rediscovery of the Elements: Europium. Eugène Demarcay

Article describing Eugène Demarcay and his discovery of europium. The authors toured Paris, France, in search of locations important to Demarcay, providing the reader with maps and historical information regarding the sites.
Date: Summer 2003
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
System: The UNT Digital Library
Rediscovery of the Elements: Vanadium (open access)

Rediscovery of the Elements: Vanadium

Article describing the discovery of Vanadium and tracing the footsteps of the discoverers.
Date: Winter 2003
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
System: The UNT Digital Library
Rediscovery of the Elements: The Undiscovery of Vanadium (open access)

Rediscovery of the Elements: The Undiscovery of Vanadium

Article describing the how the original vanadium sample was misanalysed and identified as chromium. Includes tourist information regarding Paris, France.
Date: Summer 2004
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
System: The UNT Digital Library
Rediscovery of the Elements: The Second Discovery of Vanadium (open access)

Rediscovery of the Elements: The Second Discovery of Vanadium

Article describing how vanadium was "rediscovered" in Sweden and found to be identical to del Rio's sample. Includes tourist information regarding areas relevant to this portion of vanadium's history.
Date: Autumn 2004
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
System: The UNT Digital Library
Rediscovery of the Elements: Phlogiston and Lavoisier (open access)

Rediscovery of the Elements: Phlogiston and Lavoisier

Article describing the rise and fall of the eighteenth century idea of phlogiston. Tourist information is provided regarding pertinent areas of phlogiston's history.
Date: Spring 2005
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
System: The UNT Digital Library
Rediscovery of the Elements: Carl Wilhelm Scheele (open access)

Rediscovery of the Elements: Carl Wilhelm Scheele

Article describing the career and discoveries of Carl Wilhelm Scheele. Tourist information regarding locations important to Scheele's life are visited and discussed.
Date: Spring 2005
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
System: The UNT Digital Library