Encyclopedias, Almanacs, Transcripts, and Maps
- Periodic Table of the Elements: Technetium
- Periodic Table of the Elements: Tellurium
- Periodic Table of the Elements: Terbium
- Periodic Table of the Elements: Thallium
- Periodic Table of the Elements: Thorium
- Periodic Table of the Elements: Thulium
- Periodic Table of the Elements: Titanium
- Periodic Table of the Elements: Tungsten
- Periodic Table of the Elements: Ununoctium
- Periodic Table of the Elements: Ununpentium
- Periodic Table of the Elements: Ununseptium
- Periodic Table of the Elements: Ununtrium
- Periodic Table of the Elements: Uranium
- Periodic Table of the Elements: Vanadium
- Periodic Table of the Elements: Xenon
- Periodic Table of the Elements: Ytterbium
- Periodic Table of the Elements: Zinc
- Periodic Table of the Elements: Zirconium
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- Perl, Martin Lewis