Mensuration -- See Measurement Here are entered works on the general process of measuring. Works on the science of measurement or of weights and measures are entered under Metrology. Works on the use of laboratory instruments to measure physical quantities and phenomena are entered under Physical measurements. --individual measures, e.g. Stadium (Unit of measurement); and subdivision Measurement under scientific and technical topics, e.g. Altitudes--Measurement; Ships--Measurement
Mental Arithmetic -- See Also Mental calculators Here are entered works on persons capable of executing rapid mental mathematical calculations.
--subdivision Education under names of denominations, sects, orders, etc., e.g. Jesuits--Education; and under special classes of people and various social groups, e.g. Blind--Education; Children with mental disabilities--Education; Children of migrant laborers--Education; also subdivision Study and teaching under special subjects, e.g. Science--Study and teaching; and headings beginning with the word Educational