620 Notes upon a Tour in tlie Siklclm Himalayah Mountains, [No. 7. 



a high level plateau in the mountain. The water, partaking of the 

 colour of the naked rocks that rose behind it for several thousand 

 feet, was almost black ; its shores were rocky, dark and gloomy. 



Prom this lake the Yungya, a feeder of the Tambur river in Nepal, 

 takes its rise, and is seen leaving the lake by a fine cascade of 3,000 

 feet fall. As this lake had never been seen by any European, I have 

 named it "Lake Campbell," after my esteemed friend Dr. A. Camp- 

 bell at Darjeeling. 



From this strange spot we descended to the east of the narrow 

 ledge and found ourselves in a deep hollow, full of pools of water, 

 and the whole surface of the valley one large moraine, the rocks of 

 which have been driven about and piled up in wild confusion. Tem- 

 perature of air at 10 a. m. was 58° of water 52° . 



I was enabled this day to make some slight additions to Dr. 

 Hooker's valuable Map of Sikkim— especially as this immediate spot 

 was not visited by that intelligent traveller. 



Encamped at 1 p. m. upon moss and lichen covered rocks at an 

 elevation of 14,229 feet — -we had been scrambling over these loose 

 gneiss rocks for hours, and as we had splitting headaches, we were 

 delighted to halt, although the poor Lepchas had no wood to cook 

 their food. The rarefaction of the air is beginning to tell upon us ; 

 bleeding at the nose, a tightness across the back of the head, is what 

 I most suffer from. The exertion of writing, making a false step 

 amongst the rocks, of addressing any one, stooping to tie the shoe, 

 or performing any act requiring but moderate exertion, is productive 

 of the most distressing symptoms of suffocation, sharp sudden pains 

 in the chest, extreme beating of the heart, and violent action of the 

 lungs, which being fed with a thin and rarefied air, have to work 

 hard to keep the blood purified. I have been so prostrated this day 

 as to be fit for nothing, which is the more strange as our elevation 

 is not a very great one ; but from all I can gather from travellers in 

 the Himalayah, I suspect that the sufferings of travellers commenc- 

 ing as they do from this elevation, are more acute and more noticed 

 as being something new and at first very alarming. One of our 

 Nepal coolies is in great agony, moaning in a most piteous manner. 

 During the afternoon, rain and fog shut us out from all the world. 

 In the sheltered spots I found dwarf rhododendron, a few primroses 



