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Crystals

 Subject
Subject Source: Library of Congress Subject Headings
Scope Note: Created For = NAHSTE

Found in 2 Collections and/or Records:

Astronomiae Physicae et Geometricae Elementa, 28 February 1698

 Item
Identifier: Coll-33/Quarto A [43]
Scope and Contents

Notes from a London meeting with Sir Isaac Newton on a revised plan for the Astronomiae physicae et geometricae elementa, (1702), Gregory's most important work. An erratum lies at the foot of this document, unrelated to it or to any of the other things on the sheet (which have their own entries in Gregory's index): a jotting about refraction, crystals, and cataracts of the eye. This is dated London, 30 May 1708.

Dates: 28 February 1698

Note about items received from Mor Dhughallach [Marion MacDougall], 15 August 1886

 Item
Identifier: Coll-97/CW122/27
Scope and Contents

Note about items received from Mor Dhughallach [Mòr Dhùghallach or Marion MacDougall] which reads 'Got Celt from Mor Dhughallach Na h-Abhan auan Treisnish Mull Sunday 15 Aug[us[t 1886 also crystal cube.' [Haunn, Treisnis/Tresnish, Am Muile/Isle of Mull].

Dates: 15 August 1886