_On pruning, best season and mode_.--The plants do not require to be pruned until the fifth year, as the plucking of leaves generally tends to make the plants assume the basket shape, the form most to be desired to procure the greatest quantity of leaves; if, however, the plants show a tendency to run into weed, from central branches being thrown out, this ought to be checked by removing the central stem. In the fourth year a quantity of the old and hard wood ought to be removed, to induce the plants to throw out more branches. The best season for pruning is from November to March. _On irrigation_.--To keep the tea-plants healthy, irrigation for two or three years is absolutely necessary, and no land ought to be selected for a tea plantation which cannot be irrigated. On the other hand, land liable to be flooded during the rains, and upon which water lies for any length of time, is equally detrimental to the growth of the plant. This applies to a small portion of the Kooasur plantation, which receives the drainage of the adjoining hills, and the soil being retentive, keeps the water. Deep trenches have been dug in order to drain it off--these, however, owing to the lowness of the surrounding country, act badly. Three successive seasons plants have been put into the ground, and as often have been destroyed on the setting in of the rains, showing the necessity of avoiding such kind of land for tea plantation. To facilitate irrigation, &c., as already stated, in the Deyrah Dhoon, I have limited the tea beds to three feet in breadth. This is particularly requisite in land so constituted as that of the Deyrah Dhoon, it being so porous, as mentioned by Major Cautley in his "Notes and Memoranda of Watercourses." This is caused by the superincumbent soil not being more than from one to three feet thick, in some places more, but varying exceedingly. Beneath this there is a bed of shingle of vast thickness, through which the water percolates; it is this that renders the sinking of wells so difficult in the Deyrah Dhoon, and which has tended so much to retard individuals from becoming permanent residents; at present there are many tracts of several thousand acres in that valley unoccupied from want of drinking water, as for instance, at Innesphaeel. Where the ground is very uneven, as is the case generally in the hills, the _khaul_ system, already recommended, ought to be adopted.