The expedition was essentially a transport 'show.' It is true that the Tibetans proved themselves brave enemies, but their acquired military resources are insignificant when compared with the obstacles Nature has planted in the path of their enemies. The difficulty of the passes, the severity of the climate, the sterility of the mountains and tablelands, make the interior of the country almost inaccessible to an invading army. That we went through these obstacles and reached Lhasa itself was a matter of surprise not only to the Tibetans, but to many members of the expeditionary force.

To appreciate the difficulties the mission force had to contend with, one must first realize the extraordinary changes of climate that are experienced in the journey from Siliguri to Tuna. Choose the coldest day in the year at Kew Gardens, expose yourself freely to the wind, and then spend five minutes in the tropical house, and you may gather some idea of the sensation of sleeping in the Rungpo Valley the night after crossing the Jelapla.

When I first made the journey in early January, even the Rungpo Valley was chilly, and the vicissitudes were not so marked; but I felt the change very keenly in March, when I made a hurried rush into Darjeeling for equipment and supplies. Our camp at Lingmathang was in the pine-forest at an elevation of 10,500 feet. It was warm and sunny in the daytime, in places where there was shelter from the wind. Leaf-buds were beginning to open, frozen waterfalls to thaw, migratory duck were coming up the valley in twos and threes from the plains of India—even a few vultures had arrived to fatten on the carcasses of the dead transport animals. The morning after leaving Lingmathang I left the pine-forest at 13,000 feet, and entered a treeless waste of shale and rock. When I crossed the Jelapla half a hurricane was blowing. The path was a sheet of ice, and I had to use hands and knees, and take advantage of every protuberance in the rock to prevent myself from being blown over the khud. The road was impassable for mules and ponies. The cold was numbing. The next evening, in a valley 13,000 feet beneath, I was suffering from the extreme of heat. The change in scenery and vegetation is equally striking—from glaciers and moraines to tropical forests brilliant with the scarlet cotton-flower and purple Baleria. In Tibet I had not seen an insect of any kind for two months, but in the Sikkim valleys the most gorgeous butterflies were abundant, and the rest-house at Rungpo was invested by a plague of flies. In the hot weather the climate of the Sikkim valleys is more trying than that of most stations in the plains of India. The valleys are close and shut in, and the heat is intensified by the radiation from the rocks, cliffs, and boulders. In the rains the climate is relaxing and malarious. The Supply and Transport Corps, who were left behind at stages like Rungpo through the hot weather, had, to my mind, a much harder time on the whole than the half-frozen troops at the front, and they were left out of all the fun.

Besides the natural difficulties of the road, the severity of climate, and the scarcity of fodder and fuel, the Transport Corps had to contend with every description of disease and misfortune—anthrax, rinderpest, foot and mouth disease, aconite and rhododendron poisoning, falling over precipices, exhaustion from overwork and underfeeding. The worst fatalities occurred on the Khamba Jong side in 1903. The experiments with the transport were singularly unsuccessful. Out of two hundred buffaloes employed at low elevations, only three survived, and the seven camels that were tried on the road between Siliguri and Gantok all died by way of protest. Later on in the year the yak corps raised in Nepal was practically exterminated. From four to five thousand were originally purchased, of which more than a thousand died from anthrax before they reached the frontier. All the drinking-water on the route was infected; the Nepalese did not believe the disease was contagious, and took no precautions. The disease spread almost universally among the cattle, and at the worst time twenty or thirty died a day. The beasts were massed on the Nepal frontier. Segregation camps were formed, and ultimately, after much patient care, the disease was stamped out.

Then began the historic march through Sikkim, which, as a protracted struggle against natural calamities, might be compared to the retreat of the Ten Thousand, or the flight of the Kalmuck Tartars. Superstitious natives might well think that a curse had fallen on us and our cattle. As soon as they were immune from anthrax, the reduced corps were attacked by rinderpest, which carried off seventy. When the herds left the Singli-la range and descended into the valley, the sudden change in climate overwhelmed hundreds. No real yak survived the heat of the Sikkim valleys. All that were now left were the zooms, or halfbreeds from the bull-yaks and the cow, and the cross from the bull and female yaks. In Sikkim, which is always a hotbed of contagious cattle diseases, the wretched survivors were infected with foot and mouth disease. The epidemic is not often fatal, but visiting an exhausted herd, fever-stricken, and weakened by every vicissitude of climate, it carried off scores. Then, to avoid spreading contagion, the yaks were driven through trackless, unfrequented country, up and down precipitous mountain-sides, and through dense forests. Again segregation camps were formed, and the dead cattle were burnt, twenty and thirty at a time. Every day there was a holocaust. Then followed the ascent into high altitudes, where a more insidious evil awaited the luckless corps. The few survivors were exterminated by pleuro-pneumonia. When, on January 23, the 3rd Yak Corps reached Chumbi, it numbered 437; two months afterwards all but 70 had died. On March 21, 80 exhausted beasts straggled into Chumbi; they were the remainder of the 1st and 2nd Yak Corps, which originally numbered 2,300 heads. The officers, who, bearded and weather-beaten, deserted by many of their followers, after months of wandering, reached our camp with the remnants of the corps, told a story of hardship and endurance that would provide a theme for an epic.

The epic of the yaks does not comprise the whole tale of disaster. Rinderpest carried off 77 pack-bullocks out of 500, and a whole corps was segregated for two months with foot and mouth disease. Amongst other casualties there were heavy losses among the Cashmere pony corps, and the Tibet pony corps raised locally. The animals were hastily mobilized and incompletely equipped, overworked and underfed. Cheap and inferior saddlery was issued, which gave the animals sore backs within a week. The transport officer was in a constant dilemma. He had to overwork his animals or delay the provisions, fodder, and warm clothing so urgently needed at the front. Ponies and mules had no rest, but worked till they dropped. Of the original draft of mules that were employed on the line to Khamba Jong, fully 50 per cent. died. It is no good trying to blink the fact that the expedition was unpopular, and that at the start many economical shifts were attempted which proved much more expensive in the end. Our party system is to blame. The Opposition must be appeased, expenses kept down, and the business is entered into half-heartedly. In the usual case a few companies are grudgingly sent to the front, and then, when something like a disaster falls or threatens, John Bull jumps at the sting, scenting a national insult. A brigade follows, and Government wakes to the necessity of grappling with the situation seriously.

But to return to the spot where the evil effects of the system were felt, and not merely girded at. To replace and supplement the local drafts of animals that were dying, trained Government mule corps were sent up from the plains, properly equipped and under experienced officers. These did excellent work, and 2,600 mules arrived in Lhasa on August 3 in as good condition as one could wish. Of all transport animals, the mule is the hardiest and most enduring. He does not complain when he is overloaded, but will go on all day, and when he drops there is no doubt that he has had enough. Nine times out of ten when he gives up he dies. No beast is more indifferent to extremes of heat and cold. On the road from Kamparab to Phari one day, three mules fell over a cliff into a snowdrift, and were almost totally submerged. Their drivers could not pull them out, and, to solve the dilemma, went on and reported them dead. The next day an officer found them and extricated them alive. They had been exposed to 46° of frost. They still survive.

Nothing can beat the Sircar mule when he is in good condition, unless it is the Balti and Ladaki coolie. Several hundred of these hardy mountaineers were imported from the North-West frontier to work on the most dangerous and difficult sections of the road. They can bear cold and fatigue and exposure better than any transport animal on the line, and they are surer-footed. Mules were first employed over the Jelap, but were afterwards abandoned for coolies. The Baltis are excellent workers at high altitudes, and sing cheerily as they toil up the mountains with their loads. I have seen them throw down their packs when they reached the summit of a pass, make a rush for the shelter of a rock, and cheer lustily like school-boys. But the coolies were not all equally satisfactory. Those indented from the Nepal durbar were practically an impressed gang. Twelve rupees a month with rations and warm clothing did not seem to reconcile them to hard work, and after a month or two they became discontented and refractory. Their officers, however, were men of tact and decision, and they were able to prevent what might have been a serious mutiny. The discontented ones were gradually replaced by Baltis, Ladakis, and Garwhalis, and the coolies became the most reliable transport corps on the line.

Thus, the whole menagerie, to use the expression current at the time, was got into working order, and a system was gradually developed by which the right animal, man, or conveyance was working in the right place, and supplies were sent through at a pace that was very creditable considering the country traversed.

From the railway base at Siliguri to Gantok, a distance of sixty miles, the ascent in the road is scarcely perceptible. With the exception of a few contractors' ponies, the entire carrying along this section of the line was worked by bullock-carts. Government carts are built to carry 11 maunds (880 pounds), but contractors often load theirs with 15 or 16 maunds. As the carrying power of mules, ponies, and pack-bullocks is only 2 maunds, it will be seen at once that transport in a mountainous country, where there can be no road for vehicles, is nearly five times as difficult and complicated as in the plains. And this is without making any allowance for the inevitable mortality among transport animals at high elevations, or taking into account the inevitable congestion on mountain-paths, often blocked by snow, carried away by the rains, and always too narrow to admit of any large volume of traffic.