Mumbai: Oxford University Press, 1996. Hardcover. This is the Twelfth Revised and Enlarged Centenary Edition, celebrating the centenary of Dr. Ali's birth. The previous edition was published in 1979, with reissues up to 1992. This edition was expanded to cover 538 species, compared to the 296 covered in the Eleventh Edition. Contains 64 plates. This edition is scarce in the United States. Octavo. Dark gray cloth cover with gilt title to spine. Illustrated dust jacket in light blue with black title to spine panel. Pages are bright and clean. Dust jacket shows some wear to top and bottom edges, with an Indian price tag on back panel. 354 pages, including index. NAT/061322. Near Fine / Very Good.