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M. A. Roberts introduces the newcomer to population ethics and investigates the key issues in a way that will be of interest to professional philosophers, economists, lawyers, and students in all those areas who seek to understand what a cogent, intuitively plausible theory of population will look like. To that end, Roberts presents five perplexing but telling existence puzzles that already are or shall soon become important parts of the population ethics literature: the Asymmetry Puzzle, the Pareto Puzzle, the Addition Puzzle, the Anonymity Puzzle, and the Better Chance Puzzle. Roberts develops solutions to the puzzles that together form a partial theory of population, a collection of principles grounded in intuition but highly sensitive to the formal demands of consistency and cogency.

Recently in New Zealand there have been outbreaks of measles and
pertussis every six and five years respectively. A model has been
used to compare the dynamics of these diseases, and to determine the
optimum ages at which children should be vaccinated against them.
Whereas measles could be eliminated by giving the second vaccination
at five years instead of eleven, it is difficult to devise a
practical scheme that would eliminate pertussis. It is then
necessary to consider vaccination schemes in the light of the
age-structure of future epidemics as well as their timing.

This service record is an account of military actions during the American Civil War by veteran M. P. Roberts. ; 1 leaf ; 2 pdf pages. ; All descriptive lists and service records in this United Confederate (Civil War) Veterans manuscript collection believed to be based out of Robert E. Lee Camp #158 of the United Confederate Veterans (Fort Worth, Tex.). United Confederate Veterans. R.E. Lee Camp No. 158 (Fort Worth, Tex.) ; The Southwest Collection Manuscript Record can be accessed at the following URL: http://www.lib.utexas.edu/taro/ttusw/00119/tsw-00119.html

Campaigns for moral reform were a recurrent and distinctive feature of public life in later Georgian and Victorian England. This book sets out to explore the world of these volunteer networks, their foci of concern, their patterns of recruitment, their methods of operation, and the responses they aroused