ONE of the largest and most generally distributed of the natural families of Indian plants, the Orchids form at the same time a group in which considerable interest is taken by European residents in our eastern dependency. No order affords more satisfactory data where questions as to the distribution of species have to be dealt with or points connected with endemisrn require illustration. The value of such data increases as the records for particular areas approach completeness. In order that the records for at least one area might be made as nearly as possible exhaustive, Sir G. King planned, and with the help of. Mr. R. Pantling, who made the necessary drawings, carried out a scheme for the description and delineation from fresh material of every orchid known to occur in Sikkim. The results were published in?Orchids of the Sikkim, Himalaya,? which forms the eighth volume of the Calcutta Garden Annals.