The wet and dry seasons are not so decided in the hills as they are in the plains. In January, 1861, it rained on five days and ten nights, and the total quantity of rain which fell, as indicated by the rain gauge, during this month, was 5.25 inches; in February, 3.84 fell; in March, 2.11; in April, 2.24; in May, none; and in June 6.13. In June there are generally some days of heavy rain, called by the natives Chota Bursaut, or small rains, after this there is an interval of some days of dry weather before the regular "rainy season" commences. This season comes on in July and continues until September. October and November are said to be beautiful months with a clear atmosphere and cloudless sky. After this fogs are frequent in all the valleys until spring.
In comparing the climate of these provinces with that of China, although we find some important difference, yet upon the whole there is a great similarity. My comparisons apply, of course, to the best tea districts only, for although the tea shrub is found cultivated from Canton in the south to Tan-chowpoo in Shan-tung, yet the provinces of Fokein, Kainsee and the southern parts of Kiangnan, yield nearly all the finest teas of commerce.
The town of Tsong-gan, one of the great black tea towns near the far famed Woo-e-shan, is situated in latitude 27 deg. 47 min, north. Here the thermometer in the hottest months, namely in July and August, rarely rises above 100 deg. and ranges from 92 deg. to 100 deg., as maximum; while in the coldest months, December and January, it sinks to the freezing point and sometimes a few degrees lower. We have thus a close resemblance in temperature between Woo-e-shan and Almorah, The great green tea district being situated two degrees further north, the extremes of temperature are somewhat greater. It will be observed, however, that while the hottest month in the Himalayas is June, in China the highest temperature occurs in July and August: this is owing to the rainy season taking place earlier in China than it does in India.
In China rain falls in heavy and copious showers in the end of April, and these rains continue at intervals in May and June. The first gathering of tea-leaves, those from which the Pekoe is made, is scarcely over before the air becomes charged with moisture, rain falls, and the bushes being thus placed in such favourable circumstances for vegetating are soon covered again with young leaves, from which the main crop of the season is obtained.
No one, acquainted with vegetable physiology, can doubt the advantages of such weather in the cultivation of tea for mercantile purposes. And these advantages, to a certain extent at least, seem to be extended to the Himalayas, although the regular rainy season is later than in China. I have already shown, from Dr Jameson's table, that spring showers are frequent in Kumaon, although rare in the plains of India; still, however, I think it would be prudent to adopt the gathering of leaves to the climate, that is to take a moderate portion from the bushes before the rains, and the main crop after they have commenced.
3rd. On the vegetation of China and the Himalayas. One of the surest guides from which to draw conclusions, on a subject of this nature, is found in the indigenous vegetable productions of the countries. Dr. Royle, who was the first to recommend the cultivation of tea in the Himalayas, drew his conclusions, in the absence of that positive information from China which we possess now, not only from the great similarity in temperature between China and these hills, but also from the resemblance in vegetable productions. This resemblance is certainly very striking. In both countries, except in the low valleys of the Himalayas (and these we are not considering), tropical forms are rarely met with. If we take trees and shrubs, for example, we find such genera as pinus, cypress, berberis, quercus, viburnam, indigofera, and romeda, lonicera, deutzia, rubus, myrica, spiræ, ilex, and many others common to both countries.
Amongst herbaceous plants we have gentiana, aquilegia, anemone, rumex, primula, lilium, loutodon, ranunculus, &c. equally distributed in the Himalayas and in China, and even in aquatics the same resemblance may be traced, as in nelumbium, caladium &c. And further than this, we do not find plants belong to the same genera only, but in many instances the identical species are found in both countries. The indigofera, common in the Himalayas, abounds also on the tea hills of China, and so does Berberis nepaulencis, Lonicera diversifolia, Myrica sapida, and many others.
Were it necessary, I might now show that there is a most striking resemblance between the geology of the two countries as well as in their vegetable productions. In both the black and green tea countries which I have alluded to, clay-slate is most abundant. But enough has been advanced to prove how well many parts of the Himalayas are adapted for the cultivation of tea; besides, the flourishing condition of many of the plantations is, after all, the best proof, and puts the matter beyond all doubt.
4th. Concluding Suggestions.—Having shown that tea can be grown in the Himalayas, and that it would produce a valuable and remunerative crop, the next great object appears to be the production of superior tea, by means of fine varieties and improved cultivation. It is well known that a variety of the tea plant existed in the southern parts of China from which inferior teas only were made. That, being more easily procured than the fine northern varieties, from which the great mass of the best teas are made, was the variety originally sent to India. From it all those in the Government plantations have sprung.
It was to remedy this, and to obtain the best varieties from those districts which furnish the trees of commerce, that induced the Honourable Court of Directors to send me to China in 1848. Another object was to obtain some good manufacturers and implements from the same districts. As the result of this mission, nearly twenty thousand plants from the best black and green tea countries of Central China, have been introduced to the Himalayas. Six first-rate manufacturers, two lead men, and a large supply of implements from the celebrated Hwuy-chow districts were also brought round and safely located on the Government plantations in the hills.