GLACIAL PERIOD. 
3 
Even when 1 arrived in England, many of 
my friends would fain have dissuaded me from 
my expedition, urging me to devote myself to 
special zoological studies, and not to meddle 
with general geological problems of so specula¬ 
tive a character. “ Punch” himself did not 
disdain to give me a gentle hint as to the folly 
of my undertaking, terming my journey into 
Scotland in search of moraines a sporting- 
expedition after “ moor-hens.” Only one of 
my older scientific friends in England, a man 
who in earlier years had weathered a similar 
storm himself, shared my confidence in the in¬ 
vestigations looked upon by others as so vis¬ 
ionary, and offered to accompany me in my 
excursion to the North of England, Scotland, 
and Wales. I cannot recur to that delightful 
journey without a few words of grateful and 
affectionate tribute to the friend who sustained 
me by his sympathy and guided me by his 
knowledge and experience. 
For many years I had enjoyed the privilege 
of personal acquaintance with Dr. Buckland, 
and in 1834, when engaged in the investiga¬ 
tion of fossil fishes, I had travelled with him 
through parts of England and Scotland, and 
