Further Contributions to the Geological 
History of the British Flora. 
BY 
CLEMENT REID, F.L.S., F.G.S. 
HE past ten years have yielded much information which 
X was not available when my former paper was written 1 . 
They have witnessed so great an accumulation of evidence 
relating to the origin of the British flora, to the climatic 
changes which expelled or brought back this flora, and to 
the means of dispersal by which our plants were able to 
regain their lost position, that the subject is no longer within 
the compass of an article in a scientific journal. I am com- 
pelled, therefore, to reserve all details for publication in book- 
form ; but as the volume cannot be completed for another 
year, I have in this paper tabulated some of the leading 
results. 
Before entering into details as to the range in time of our 
British plants, it may be useful in a few words to summarize 
the results now arrived at. This will be done without touch- 
ing more than is necessary on the various debatable con- 
clusions to which the researches seem to lead. The notes 
1 Annals of Botany, Vol. ii, p. 177, No. VI, Aug. 1888. 
[Annals of Botany, Vol. XII. No. XL VI. June, 1898.1 
