Practical Gemology refers to the application of the knowledge of characteristics and properties of gemstones in identification or separation of synthetics and imitations. Diamond grading is included in practical gemology.
In November 1919 and January 1920, in what notoriously became known as the âPalmer Raids,â Attorney General Mitchell Palmer began rounding up and deporting so-called radicals. Thousands of people were arrested without warrants and without regard to constitutional protections against unlawful search and seizure.
Important exceptions to this scheme were a number of test series conducted during 1962-63: 1  Operation Dominic (which also been called Dominic I), conducted between 25 April and 4 November of 1962 (and thus overlapping Nougat and Storax); and which included the Department of Defense (DoD) Operation Fishbowl high-altitude tests in the Pacific.