NO section of the Himalaya is more fully-known than Sikkim; Kashmir even has not been more assiduously investigated. The information regarding Sikkim is important for two reasons. This country, “which extends, between long. 88° and 89° E., from the Bengal plain to the tableland of Tibet,” the only fully explored portion of the eastern Himalaya. Our knowledge of the more extensive territories of Nepal to the west, and of Bhutan to the east, is relatively scanty.