On our return we boiled water at the Soap spring, which is about 50 feet above the mines, Temp. of the air 80.5. 2.5 P.M. of boiling water 209.  Elevation 1600 feet.  And on the top of Kuwa Boom, which is crossed at a comparatively low place, at 4.5 P.M.  Temp. of the air 76, of boiling water 207.  Elevation 2678 feet.

I can say nothing as to the peculiar features of the vegetation, in the woods towards Kuwa Boom.  I gathered three Aurantiaceae; the Olacinea of yesterday is common, a large arborescent Artocarpus fructibus oblongis sub-informibus, sub-acidulis, .75 uncialibus; Teak rarely; Tonabea, noble specimens occur; on the Kuwa Boom, a large Gordonia arborea, two arborescent Myrtacea, large Mangoes, Bamboo, a Morinda; Magnoliaecea occurs on its western face, as well as the Conifera toxoidea before gathered.  Dicksonia and Pladera justicioidea both occur.  Dianella nemorosa, etc.  The Serpentine is carried from Keoukseik in boats down the Endaw Kioung, thence to Camein, and from whence it goes to Mogam, which is probably the principal mart.  Calamus spioris petiolorum uncialibus verticillatis occurs in abundance in all the damp jungle.

We returned in the afternoon to our halting place of yesterday, from which the mines are distant ten miles, four of which occur from the side of Kuwa Boom to the West.  The Endaw Gyee is situated on a plain, but it is enclosed by hills on every side except the S.E.  Those to the south are very high.

April 6th.—­Returned, diverging from the path to the village Keoukseik.  Noticed Liriodendron, AEsculus, Achyranthis aspera, Vallaris solanacea, etc.

The village is situated to the S. of the road to the mines; it is close to the Nam Teen, and on a small elevation; it is stockaded.  The number of houses is about sixteen; of inhabitants, including children, 120:  all the houses, except two, being small.  The merchants, etc. employed about the mines, halt on the Nam Theen, which is up to this point navigable for small boats.

Thermometer 66. 6.5 A.M.  Temp. of boiling water 210.

April 8th.—­Reached Camein at noon:  halted on the 7th at our former hut on the Endaw Kioung.  The additional plants noticed are Duchesnia indica, common in wet places; a Bamboo, paniculis (culmis) nutantibus aphyllis, amplus.  Pandanus; Curculigo pumila, floribus sub-solitarius ante folia, 6 vel. 4 partitis; a Careya, Dillenia, arborea floribus numerosis parvis luteis.

AEschynomena, Anthistiria arundinacea, Composita arborea, 40-50 pedalis.  Another species of Anthistiria, common on the margins of hills during the march.  Fir trees are reported to exist on Lioe Peik, which bears South from Kioukseik.  Volcanic hills reported to exist near the Endaw Gyee, but no salt rock occurs.  This mineral is said to be found three days’ march from Kioukseik on the Nam Theen.  The revenue said to accrue from the Serpentine mines, is probably highly exaggerated; and the supply of the stone is said to be diminishing yearly.  Casually found on the Nam Toroon, a Sterculia arborea, florib-masculis clavato, infundibul. coccineis, pubescentibus:  a Sophora, floribus albidis pallidissima ceruleo tinctis, of which the flowers alone were seen; Prenanthis flosentis citrinis, a Polygala and Hypericum were likewise found.