Oct. 1849. YEUMTSO. ARRIVAL OF DR. CAMPBELL. 159 



I had come about fifteen miles from the pass, and arrived 

 at 1 p.m., remaining half an hour. I could not form 

 an idea as to whether Campbell had followed or not, and 

 began to speculate on the probability of passing the night 

 in the open air, by the warm side of my steed. Though 

 the sun shone brightly, the wind was bitterly cold, and I 

 arrived at the stone dykes of Yeumtso at 3 p.m., quite 

 exhausted with fatigue and headache. I there found, to my 

 great relief, the Tchebu Lama and Lachen Phipun : they 

 were in some alarm at my absence, for they thought I was 

 not aware of the extreme severity of the temperature on the 

 north side of the snows, or of the risk of losing my way ; 

 they told me that after a long discourse with the Dingpun 

 (or commander) of the Tibetan Sepoys, the latter had allowed 

 all the party to pass ; that the Sepoys had brought on the 

 coolies, who were close behind, but that they themselves 

 had seen nothing of Campbell ; of whom the Lama then 

 went in search. 



The sun set behind Chomiomo at 5 p.m., and the wind 

 at once dropped, so local are these violent atmospheric 

 currents, which are caused by the heating of the upper 

 extremities of these lofty valleys, and consequent rarefaction 

 of the air. Intense terrestrial radiation immediately 

 follows the withdrawal of the sun's rays, and the tempera- 

 ture sinks rapidly. 



Soon after sunset the Lama returned, bringing Campbell ; 

 who, having mistaken some glacier-fed lakes at the back 

 of Kinchinjhow for those of Cholamoo, was looking for 

 me. He too had speculated on having to pass the night 

 under a rock, with one plaid for himself and servant ; in 

 which case I am sure they would both have been frozen to 

 death, having no pony to lie down beside. He told me 

 that after I had quitted Kongra Lama, leaving him with 



