Matches in DBpedia 2014 for { ?s ?p Frank W. Preston (1896–1989) was an English-American engineer, ecologist, and conservationist. He helped found the Western Pennsylvania Conservancy and worked to reclaim the land that is now Moraine State Park in Butler County, Pennsylvania, in the United States. Preston was a leading expert in glass technology. He studied birds throughout his life and published papers on the shapes and pigmentation of birds eggs, the distribution of the heights of their nests and their migration patterns. Preston also wrote three major papers on the mathematical characteristics of ecological rarity and commonness.. }
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- Frank_W._Preston abstract "Frank W. Preston (1896–1989) was an English-American engineer, ecologist, and conservationist. He helped found the Western Pennsylvania Conservancy and worked to reclaim the land that is now Moraine State Park in Butler County, Pennsylvania, in the United States. Preston was a leading expert in glass technology. He studied birds throughout his life and published papers on the shapes and pigmentation of birds eggs, the distribution of the heights of their nests and their migration patterns. Preston also wrote three major papers on the mathematical characteristics of ecological rarity and commonness.".