MICROPALÆONTOLOGŸY OF POSTGLACIAL DEPOSITS, 451 
CONTENTS. 
Page 
Introduction oo aaa 449 
1. Method of Survey ..,,.... ies 451 
A. The Field Work ............ TIME 451 
a. Equipment ..,,..............,.......,,. . 45] 
b. The Field Work proper ............ eese 452 
B. The Laboratory Work,,,...,,,,,,...,..,,,..... 452 
2. Peat Mosses investigated. .........,.,.,. ernennen 454 
A. Peat Mosses in Ross-shire (Achnasheen and Suath- 
CAITON) Lecce eee 44e... .. 496 
B. Peat Mosses on the Isle of Skye .,,.....,,...... 465 
C. Peat Mosses on the Island of Lewis ,,.,,..,,..... 4658 
D. Peat Mosses at Helmsdale, Sutherlandshire ...... 478 
E. Peat Mosses on the Orkney Islands ,.,,,,,,....., 479 
F. Peat Mosses on the Shetland Islands ............ 484 
ise) 
. The Pollen Frequency (PF) in the Peat Mosses investigated 492 
The Forest Trees. A Summary of the Occurrence of 
their Pollen-grains in the Deposits investigated, and a 
Comparison with the Occurrence of Pollen in the Peat 
Mosses of Sjælland and S.W. Sweden ..,,....,,,,.. 493 
5. The Character of the Postglacial Woodlands of Scotlund 
and some other Countries as suyyested by the Statistical 
> 
Method of Pollen Research ............,........,. 496 
6. Suggestions for a Programme for further Invest'yations .. 499 
List of References. 2. 22222200: Cece e eet ee ee nern 501 
1. METHOD or Survey *, 
A. The Field Work. 
a. Equipment. 
The following outfit was carried for the field work :—A peat bore of the 
Hiller pattern, a smaller model (vide Haglund, 1909) with 7 links to 1 m., 
which allowed samples to be taken from peat mosses to a depth of 7 m. 
This bore, kept in a leather case and carried by a strap over the shoulder, is 
very easy to handle, and I was able to do all the work unaided. I also used a 
boring-stick, length 1 m. ; a turf-knife for cleaning the walls of the peat- 
hags and for cutting sections ; vakum for cleaning the container of the bore ; 
a three-foot rule; a diopter compass ; a sitometer (vide Rübel, 1922, p. 140); 
an aneroid ; forceps and spatula for taking the turf out of the container of 
the bore ; small glass tubes, 7°5 em. long and 1-3 em. inside diameter, corked 
at both ends, in which to keep the samples ; lastly, small bags of strong 
brown paper in which to carry the samples to the laboratory for washing or 
* The greater part of the subject of this chapter has already been published, though in a 
short form, by von Post (1916 « and b). These papers are, however, written in Swedish, 
and thus not accessible to the greater part of non-Scandinavian readers. 
