MICROPALÆONTOLOGY OF POSTGLACIAL DEPOSITS. 497 
TEXT-FIG. 20, 
A B c D E F 
POLLEN-SPECTRA. 
1. Scotland (general spectrum). 8. Holland (S.W. Sweden) 
2. " (spectrum of the A niveau). (late subatlantie spectrum). 
3. Holland (S.W. Sweden) 9. N.W. Germany (Bremen). 
(pre-boreal spectrum). 10. Redkino, Tver (Russia). 
4. z (late boreal " ). 11. Finland (“ abiegn " time). 
m > (Atlantic ). 12. " (“ pre-abiegn ” time). 
6. » (sub-boreal » ). 13. N.F. Sjælland, Denmark. 
7. (subatlantie ). 14. Sebastiansberger Heide (Bohemia). 
A—Betula: B=Pinus; C—Alnus: D=Mixed oak forest (Tilia, Quercus, Ulmus, ete.); 
E=Fagus+Carpinus; F=Picea; G= Abies; S=Saliv; Co=Corylus (percentage calculated 
separately). 
