ATS MR. G. ERDTMAN : STUDIES IN THE 
Situated due S. of the road to the south of South Shawbost, about 35 m. 
above sea-level. A boring was made in the centre of this interesting moss, 
which fills a large hollow between the surrounding hills and, with its flat 
surface, very closely resembles a meadow. 
The sequence was as follows :— 
A. 200 em. — Carea-Scirpus enspitosus peat. 
D. 170 em. of a substance with a great content of dy ; the lowest part 
somewhat resembling Phragmites peat and containing remains of 
Eusetum, It forms a gradual transition to 
C. 150 em. Gyttja : yellow, but at the base greyer. 
D. 40 cm. +clay ; grey, tough. 
The diagram shows a normal alder-pollen eurve; near the lowest part 
pine-pollen reaches a maximum, This, of course, indicates that it is the A-zone 
(sample 8). Lower down the pollen-grains of trees are met with but very 
rarely : in sample 10, 1 pine, 9 birch; sample 11, 2 birch ; sample 12, 1 birch ; 
sample 13, 1 willow ; sample 14, 1 willow. Instead, the pollen of Myrio- 
phyllum alterniflorum is dominant in these samples (5500 per cent.” in 
sample 12) : in sample 4 it was also seen, but only sporadically. /lex pollen 
occurred in sample 2, beech-pollen in sample 4, and spores of Polypodium 
vulgare in most of the samples. Also in the Krutzelried at Schwerzenbach 
east of Zürich there are very old lime and detritus gyttjas, also without a 
trace of tree-pollen (Neuweiler, 1910 ; Gams and Nordhagen, 1923). 
D. Peat Mosses at Helinsdale, Sutherlandshire. 
Prat Mosses Nos. 22 and 23. 
Text-Fia. 16. 
0 10 20 30 40 50 60 70 
me | 
— 
1 En a 
1— | 
| 
i | 
^ - {—- —+—; 
—0— Alnus. —o— Betula. —e— Pinus. eese Ulmas. 
——— Quercus, -------- Tilia, --m-- Corylus. 
Owing to bad weather, only a few observations could be made. Two series 
(mosses Nos. 22 and 23) were taken on the slopes of Bein Meillich west of 
Helmsdale, on the eastern coast of Sutherland, from rather small deposits 
where erosion had cut furrows, in places down to the underlying ground, 
