Original reports on the ground breaking work done by botanist Frederick Coville on the cultivation of wild blueberries (early 1900s). Surprisingly readable.
Experiments in Blueberry Culture, 1911 – discovery of soil needs of blueberries and implications for commercial production.
Directions for Blueberry Culture, 1916 – Five years later. What has been learned. Notes work done at Whitebogs, NJ.