ABSTRACT
COMMUNITY CHANGE when measured in terms of population change is a subject of intriguing interest, whether it concerns population increase or decrease, population mobility, or changes in the characteristics of a population. By statistical reporting through the use of charts and tables and with different mathematical devices we are able to measure with increasing accuracy the various phenomena relative to population. This is the important field of demographic research to which the sociologist in his study of community life, urban life in particular, must frequently turn. Much important information about urbanism and population phenomena is not reached by the approach of demography, but much of such nondemographical material, once assembled, may be enriched by the findings of demography. For example, from economics we can learn much about the global trend of urbanism, but such information is greatly clarified when matched with demographical information about urbanization trends.
