_Note on the culture of the tea plant at Darjeeling, in 1847, by Dr. A. Campbell, Superintendant_.--About six years ago I received a few tea seeds from Dr. Wallich; they were of China stock, grown in Kumaon. I planted them in my garden in November, 1841, and had about a dozen seedlings in the month of May following, which were allowed to grow where they had come up, and rather close together. The plants were healthy from the commencement, and up to May, 1844, had grown very well; at this period the ground passed into other hands (Mr. Samuel Smith's), and I lost sight of them until last August, when Mr. Macfarlane, from Assam, who was acquainted with the tea plant in that province, arrived here. Being desirous of ascertaining how far the climate and soil of Darjeeling were suitable to the tea, I took him to examine the plants, and begged of him to record his opinion on their growth and qualities, with reference to their age, and his experience of the plant in Assam. The result was quite satisfactory. Encouraged by this result, I determined to give an extended trial to the plant, and through the kindness of Major Jenkins and Captain Brodie, of Assam, I procured a supply of fresh seed in October and November last, which was planted in November and the early part of December. The seed was of excellent quality. It commenced germinating in March, a few plants appeared above ground in the early part of May, and now I have upwards of 7,000 fine healthy seedlings in the plantation. For the information of those who may desire to try the tea culture in this soil and climate, I have to state the mode of planting pursued by me, and other particulars. The ground is a gentle sloping bank, facing the north and west; the soil is a reddish clay mixed with vegetable mould. After taking up a crop of potatoes, and carefully preparing the ground, I put in the seeds in rows six feet apart and six feet distance in the rows. The seeds were placed about three inches under the surface, five in number, at each place about four inches apart--thus : . : On an average, two out of five have come up. The seedlings commenced appearing above ground early in May, and continued to show until the end of July. The earliest were, therefore, six months in the ground; the latest about eight months. The seed was of China stock, grown in Assam, and of the Assam plant mixed. I am anxious to have the China stock only, and purpose separating the plants of the Assam stock as soon as I can distinguish them, which Captain Brodie informs me can be readily done as they grow up; the China plants begin of a darker color, and smaller than the Assam ones. I hope to have a supply of the seed of China stock from Kumaon next November, and with it to cause the extension of the experiment at this place.