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SUMMARY:
The diarist describes views toward Pa La and Lanyong, debates whether the seen pass is Pa La or Lingtsangha La on the route to Migyitun, and notes a prominent peak likely the Migyitun Peak. Camping north of Chubumbu La, they record weather, altitudes, and fieldwork with Thompson, including bird specimens and several Primula and Omphalogramma finds, with a halt day spent revisiting the Chubumbu La.

CONTENT:
about 2 miles from here. From there we could see the Pa La & Lanyong. The Pa La lies at a bearing of 266° & Lanyong at 47°. I should say that the Pa La was further than Lanyong but not much. Again failed to find flowers, though P. tsariensis is in masses everywhere, P. dryadifolia common to the N. of the pass, some P. Valentiniana a mile South. This valley is said to lead to Migyitun, but we could not see how it does so. Shokakuling was bloody pleasant on the way up, but with bare patches. They must be sitting, but we could find no nests. Also collected two more Phylloscopus tibetanus & a flycatcher with eggs c/3. There is obviously nothing yet, this side of the main Range. There is a fine peak to the S. of the Pa La. Can it be the Pk. to the E of Migyitun - (N.E.?). I have heard that the Pass we saw today is not the Pa La but the Lingtsangha La, viz on the road to Migyitun. In that case the peak is almost certainly the Migyitun Peak. It is almost impossible to get information that one can rely on though. - Chubumbu La - see June 2.

6th June. Camp 2m N of Chubumbu La. B.P. 189.8° Temp 35° Time 3.0pm. Ht. approx. 12596'. Rained in the night up to 7.0am, then cleared & was a fine day with a good deal of sun till 3.0pm. Then mist & some rain, clearing up later. Some thunder yesterday evening & again this evening. Thompson & I went direct South from camp over the hills, but ran into a lot of mist, & so to get down to the valley we had a series of cliffs to negotiate. A valley comes in from the SW just above here, up it we went. The only real find was Omphalogramma minus 3970, which is fairly common on the edge of the last bit of abies forest. P. Valentiniana & P. Pauliana & P. tsariensis are coming everywhere. A nice little dwarf rhododendron was No. 3975, common about here, but nowhere else. Although reports of the Chubumbu La are not a bit favourable, we go over it tomorrow & hope for a fine day.

7th June. Halt. Misty, but fine nearly all day: some showers. Went up to the Chubumbu La, at mile 2. B.P. 187.2° Temp. 45° Time 7.30 am. Ht. approx 13900'. A good day on the whole. On our way up to the pass we came across a lot of what I had thought to be a new primula collected beyond the Lo La under No. 3762. At that time I could not make it out, but now I see it

SUMMARY:
At Langong, the diarist records collecting several Primula and other alpine plants, observing a new warbler (P. tibetanus), and noting marmots and lingering snow. A clutch of Crossoptilon eggs and a blood pheasant egg are obtained; the gyimpon arrives and promises coolies, and plans are made to explore valleys between Pa La and Lo La before visiting the Pachakshiri Loba.

CONTENT:
Langong

depressed, but then we saw P. bariensis, and knew that there would be other things as well. For a change, the second time only, I did not take a gun, and of course saw the new warbler P. tibetanus. There were two of them, in juniper scrub, just as on the Bimbi La. Of interesting things, we saw Mec. simplicifolia - and I particularly examined the filaments, which were white. Then Tsonypon brought in a primula, which I think must be P. chamaethauma 3893 (P. chionantha 3893). Then P. macrophylla 3894, 3895 (P. macrophylla var. macrocarpa 3895) was seen. Then over a ridge we found in almost full flower that delightfully pretty - and fragrant - P. rotundifolia. On the whole a good day. There are many marmots running about, now the snow is off the ground. The actual pass is probably still covered with snow, as there were huge drifts a good deal lower than the highest we went, on the North faces. I heard on return that one man had already found a nest of Crossoptilon, but he has not brought the eggs yet.

29th May. Halt. Langong. Fine most of the day, but clouded and showery. Started in the morning about at 11.00 a.m. Saw nothing much. In fact there is remarkably little in the valley. Collected Primula yargongensis 3914. Our offer for eggs is doing well. Today got a clutch of seven eggs of Crossoptilon, nest on the ground in a bush. Later on a man came in with one blood pheasant's egg, and will see the nest tomorrow. The eggs were very difficult to blow, having chicks inside. (P. dryadifolia 3917, Rhododendron v. microstoma 3918, Ranunculus 3919, 3923, Primula 3925, Gal. nambanensis 3920, Corydalis 3921, 3922, Lonicera litangensis 3926).

30th May. Halt. Langong. Mostly fine in Langong, but rain mist on the hills all day. I went up the valley immediately North of Langong village, running parallel to the Tscha valley. There is nothing in any of these valleys till one gets to 13,500 feet or so. Then primulas appear. This is a fine valley, with a good sized lake at about 13,500 feet above which there is a fine waterfall. But flowers are few and far between, and I think we are really too early yet. The gyimpon has arrived, seems very helpful and friendly. He wants to go off for 8 days, but has promised coolies all I want in the meantime. My plans are to stay here two more days, and then go West, up a valley which lies between the Pa La and Lo La routes. Stay there four days and return here for two before going off to the Pachakshiri Loba on the 9th, for a week. That will take up all the time I can spare in this area. Everything here seems to be late. Snow lies pretty thick on the hills yet, and nearly all passes are shut. Tsari Sama - known generally as Tsari Sarpa, "the new Tsari" is not

SUMMARY:
Notes two Primula specimens and common birds observed, including Phylloscopus tibetanus and a juvenile ruby-throat. Describes the route from camp over the Mira La to Chomo Dzong with multiple river crossings and mentions a large monastery, and the Shambuling Chu entering the Nyang Chu valley.

CONTENT:
600
Younghusband

6061. Primula Nivalis sect aff. macrocarpa. I don't know this primula. The flower is very like that of P. macrocarpa as found near here. But the habitat is more like that of P. rotundifolia, the leaves are very unlike P. macrocarpa, being more the texture of P. Jaffreyana or P. rotundifolia. The calyx lobes also are very long, the white farina is like that on P. rotundifolia.
6062. Primula sp. (Minutissimae) pumilio Very little seen.

BIRDS. No. 1, 2, 3, Phylloscopus tibetanus. Pretty common here, all in dwarf rhododendron, dwarf juniper & salix. But in bad condition. All seem to have lost their tails.
No. 4. Ruby throat. A juvenile ♂, not ♀.

From Camp 12th May, to CHOMO-DZONG. The valley divides at camp, the southerly valley being the route followed by pilgrims round a mountain. The westerly valley is followed for 2 miles, after which the path leads up the hillside to the north toward the Mira La, reached after passing a small lake, in 3½. Descent on North side steep at first, to m 4½, then in broad open valley to m 7, passing some yak herd huts, L. From here to Chomo Dzong, the path is pretty steep descent, through forest, the path crossing the river several times, reaching Chomo Dz on the L bank at m 20. There is a large monastery at Chomodzong. The Shambuling Chu enters the Nyang Chu valley at 250° M.

SUMMARY:
Field notes from Chubumbu La record collections of Meconopsis simplicifolia, several rhododendrons, Lilium souliei, Cassiope selaginoides, and primulas, with mentions of 1937 seed collected. Bird observations from Lanyong, Sheltan La, and Cheanang note probable breeding pairs and a flycatcher at a nest.

CONTENT:
32a
Chubumbu La. 2 June - See June 5

3944. Mec. simplicifolia. There were many of these growing in dwarf juniper. On the whole these have not such a true blue colour. Nearly all, but not quite, have blue filaments. The flowers were very large. Hairs on the stalk appear to fall off, when the stalk is at full length. A few 1937 seed collected.

3942 Rhod. aff. repens (forrestii repens). Has usually 3 flowers often 4. A more lovely pink.

3941. Rhod sp. (ludlowii). A few 1937 seed collected.

3942. Rh. lopeangense

3943. " callimorphum

3944. " lopsangense
      3945 Lilium souliei
      3948 Cassiope selaginoides

Cheanang

3951 Primula vernicosa var. violacea. This is very common. It is however mixed up with the white form. One never sees the two rooted together, though they may grow cheek by jowl.

3953. Primula valentiana. Very common indeed, just like P. odontica, it comes into full flower as P. tsariensis is over. A good collection of seed made from a slope which had been covered with snow till a week ago. All capsules are full of seed, so it must ripen very late.

BIRDS: No. 1. Blackbird. Lanyong.

2. Phylloscopus tibetanus. Sheltan La. Lanyong. One of pair, probably breeding.
3. Rubythroat. Cheanang, Lanyong.
4. Phylloscopus tibetanus ?
5. " " " } Obviously a pair. I think they were building a nest in dwarf juniper.
6. Flycatcher ♂ from nest. C/3. Cheanang. Lanyong.

SUMMARY:
Notes from Bimbi La in Tsari District, Tibet, list plant specimens and record a specimen of a new willow-warbler (Phylloscopus tibetanus). The page also notes gamebirds such as Sclater's Monal, Temminck's Tragopan, and Kuser's Blood-Pheasant near Migyitun, with a reference to Tetraophasis szechenyii seen on 31 May.

CONTENT:
Bimbi La June 6.
Iris kumaonensis 1781.
Gaultheria pyrifolia 1782.
Pr. yargongensis 1783.
Pedicularis diffusa 1784.

Bimbi La - in Tsari Dist. 7 85 Tibet
L. Ibis 47
specimen of a new Willow-Warbler - Phylloscopus tibetanus.
Ibis 198
Bimbi La June 7
Berberis telomaica var. atripala 1885.
L. Ibis 47. Lonicera hispida 1786
Sclater's Monal, Temminck's Tragopan Potentilla microphylla 1787
Kuser's Blood-Pheasant are all to be found Rhod. paludosum 1788
on the hills near Migyitun either Mec. horridula 1789
here that we obtained our first specimen " simplicifolia 1790
Prim. calosa 1791
Tetraophasis szechenyii on 31 May where see
Ibis 382.