eC») 
The greatest part of these pits are found on the Noorder Veld of 
Eksloo, at a distance of about 1'/, K.M. from this village and at a 
mutual distance of 50 M., a few at 100 M. mutual distance, in the 
directions from north-east to south-west and north-west to south-east; 
some, nearer to the village, on the Hooge Veld. Seven others are on 
the Buiner Veld, at about 1'/, K.M. farther N.N.W. from the principal 
group, succeeding each other at intervals of 100 M. in the direction 
from south-east to north-west. The pits are square, the edges measuring 
about 3 M., and though many are not quite as deep now as they 
have been, owing to their being partly filled again by blown-in sand, 
the vertical sides of the greater number are still uncovered to a depth 
of 3 or even 3'/, M. 
Excepted two of them, situated most to the north-eastern border of the 
Hondsrug, we observe in all a similar section. In the upper part 
a relatively thin bed of sand, being near the surface of a dark 
greyish or nearly black colour, owing to much humus contained 
in it, but for the rest of a light yellowish or brownish grey, 
this bed showing hardly any traces of stratification and containing 
irregularly scattered stones of very different size, among which 
granites and coloured quartzites are predominant '). The sand is 
intimately mixed in some places with a noticeable quantity of brown 
clay. It is the well-known bouwlder-sand of the Hondsrug. Under it, 
to the bottom of the pits, rather coarse, loose, white quartz-sand, 
which is clearly stratified and in which are to be seen, locally, 
irregular small banks and strings of well rounded, water-worn pebbles, 
principally of white vein-quartz and next to it of light-grey quart- 
zites and Lydian Stone, the largest of which pebbles have for the 
greater part only a dimension of 15, some however of 25 mM. 
The grains of this sand seen through the magnifying-glass prove to 
be also well rounded and almost all clear as glass. This description 
of the underground is completely applicable to the 4 Preglacial or 
Rhine- Diluvium’. 
Whilst near the bottom of the pits the stratification of this plei- 
stocene alluvium of the Rhine is often nearly undisturbed and pretty 
well horizontal or sloping in undetermined directions, it is upwards 
always fantastically folded and wrinkled, contorted, a feature 
becoming very prominent on account of thin or sometimes thicker veins 
of sand of a yellow or brown colour, evidently derived from the 
1) In most cases we find only smaller stones, the bigger ones having already 
been dug up, which appears from the unevenness of the surface, caused by the 
irregular reposition of the swards. There where this is not the case, large stones 
and boulders are still to be found. 
