PKEFACE TO THE NATURALIST'S 
CALENDAR. 
HE mode in wHch tlie following rural Calendar 
of tlie year lias been composed, was to copy 
out from the Journals all the circumstances 
thought worthy of noting, with the several 
dates of their recurrence, and to preserve the 
earliest and latest of those dates ; so that the Calendar ex- 
hibits the extreme range of variation in the first occurrence 
of all the phenomena mentioned. To many of them only 
one date is annexed, only one observation having been 
entered. This is particularly the case with respect to the 
flowering of plants, with which the book of 1768 alone was 
copiously filled ; and it is to be noted that this was rather a 
backward year. — [J. A.] 
[In the preface to the edition of the Natural History 
published in 1802 it is stated that 
A very valuable addition to the Calendar and Observa- 
tions has been obtained from the kindness of William 
Markwick, Esq., F.L.S., well known as an accurate ob- 
server of nature; whose parallel calendar, kept in the 
county of Sussex, is given upon the opposite columns.] 
