Phytogeogr apical Excursion in the British Isles. 25 
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THE INTERNATIONAL PHYTOGEOGRAPHICAL 
EXCURSION IN THE BRITISH ISLES. 
IV. —Impressions of the Foreign Members of the Party. 
L—PROFESSOR H. C. COWLES. 
It is too early to determine the most striking results of this 
excursion to the science of Photogeography, but it is not too early 
to predict with certainty that its influence will be very important 
and far-reaching. It is easier to distinguish the benefits of the 
excursion to its participants than to the science in general. I have 
felt that the chief benefit to me has been the opportunity of living 
for a month in intimate relationship with my phytogeographic 
colleagues of other countries, of knowing them from many points of 
view, and thus of coming to feel that they are friends, as well as 
fellow scientists. This month of living and travelling together 
