AS A NATURALIST 
and of his journeys in England and Scotland during the last ten 
years of his life might be made up from these entries. Thus in 
1759 and 1760 he was living in London, where, as he says in a 
letter to his friend Dr. Wharton (September, 1759), " I do not 
see much myself of the face of nature here, but I inquire;" but, as 
the passages just cited show, he was catching insects in the fields 
of Marylebone and of Chelsea, and in Hyde Park, and there are 
not a few entries of ^^prope Londinum cepV or ^^repertus est.''^ 
Similar entries show him to have been in Kent, in Suffolk, in 
Hampshire, in Cornwall, in Yorkshire and Lancashire, and in 
Durham at Hartlepool on the coast. The dates of his visits to 
these different regions may be gathered from his letters; and 
while one might learn from the letters that he was a keen and 
constant observer of nature, the reader would not gain from them 
even a faint conception of his devotion to the study of natural 
objects and his extraordinary proficiency as a naturalist. He did 
not claim the interest of his friends in pursuits for which they 
might have little inclination or sympathy, and so far as appears 
he kept up no relations with other students in the same field. 
The third volume of Gray's copy (the second of the Systema) 
is devoted to Plants, and has eleven hundred and twenty-two 
pages of text and interleaving. The notes are not less numer- 
ous, but they are for the most part briefer than in the preceding 
volumes. He was an accomplished botanist, and his notes are 
( 15 ) 
