Geographical Schedule in CC, UDC, and DC

Brings out the essential changes made in the Geographical Schedule of the forthcoming Ed 7 of CC, as a result of the Postulation of Emptying Digit which enables better conformity to the Principle of Geographical Contiguity and removes faulty suggestions implied in the Notational Plane in regard to the sovereign status of some countries. Traces the progress of ideas from Ed 1 to Ed 7 of CC. Makes a comparative study of CC, UDC, and DC in respect of the above points, the use of non-favoured first characteristics, and physiographical features and population clusters as second level of Space. Shows the accommodation of this level in CC to be due to the release of the entire Array of order 1 in the Notational Plane and this in its turn was made possible by the use of a single Inverted Comma (') as a distinctive Connecting Digit for Time Isolate.