A Dictionary of the Economic Products of India: Volume 6, Pachyrhizus to Rye, Part 1

Assisted by contributors, Scottish botanist George Watt (1851-1930) set about organising vast amounts of information on India's commercial plants and produce, including scientific and vernacular names, properties, domestic and medical uses, trade statistics, and published sources. Volume 6, Part 1 (1892) contains entries from Pachyrhizus angulatus to rye.