March 14th.—­Halted.  Water boiled 209 degrees.  Temp. 59 and 60 degrees.  Elevation 1622 feet.

March 15th.—­Left the Meewoon about 8, and proceeded about 100 yards up the Khathing.  Thence we struck off, and commenced the ascent, which continued without intermission for some hours, the whole way lying through heavy tree jungle.  Ascent in some places very steep.  On reaching the summit, or nearly so, the jungle became more open, and the route continued along the ridge.  We then descended for 50 feet, and halted on an open grassy spot where we ascertained the altitude to be 5516 feet.  Boiling point 202 degrees.  Temperature of the air 63 degrees.  The vegetation increased in interest; I noticed near the Khathing, Buddleia neemda, Pladera Justicioidea, which continues however all along even to 5000 feet.  Thunbergia coccinea, Chondrospermum, Dicksonia; near and on the summit Magnoliae and two or three Cupuliferae, Daphne Strutheoloides, nobis, Gymnostomum involutum, Berberis pinnata, the same as the Khasiya one, but scarce.  Laurinea arborea, Bambusa monogynia, Rubus moluccanus:  Frutex Ruscordeus, Loranthus, Anthistiria arundinacea, Melastoma, Cyathea, Compositae, Conyzoideae two or three, Correas one, Hedychium, Eurya, Gleichenia, Hermannia, Lycopodium ceranium, Hoya teretifolia, Acanthaceae two or three, Bucklandia.

We thence descended, and after a longish march reached the Natkaw Kyown, and finally halted on the Khusse Kyown.  During this portion I gathered some very interesting plants, a new Ceratostemma, Adamia, two or three Orchideae, a beautiful large flowered Cyrtandracea, the same Daphne, an Umbellifera.  Vaccineaceae, four species of Begoniae, a Viburnum.  Crawfurdia and Polypodium Wallichianum, which roofed in our shed; Musci increased as well as Succulent Urticeae in shady places.  Smilacinae were common, especially one at elevations of from 3 to 5000 feet inflorescentia cernua.  The features are the same, the drier woods crowning the ridges.  On the trees of these, Orchideae and Filices are common, as well as in low parts in which Acanthaceae abound.  I saw no Betee-bhans nor Deo-bhans, (peculiar bamboos).  Of the above, Ceratostemma, Daphane, Smilacinae, Cyathea, some of the Begoniae, the large flowered Cyrtandraceae, Umbelliferae are sure indications of considerable elevation.  The course was nearly south.  Distance about 13 miles.  Thermometer in boiling water 206 degrees.  Temperature of the air 50.5 degrees.  Halting place, 3516.

March 16th.—­Started before breakfast, and reached the Khusee Kyoung without any material descent.  Thence we continued descending on the whole considerably until we reached Namthuga, at 10 A.M.  Thence the descent increased.  Halted on Kullack Boom.  General direction S.; distance 13 miles.  Noticed Areca up to 3800 feet, as well as Cheilosandra obovata, Bletea melleodora, and Begonia palmata as high as 3000 feet.