PREFACE. 247 
but inffead of 32 i have made o the freezing 
point. This method is more fimple, natural, and 
uniform, and conveys a more diffindi idea to the 
mind. To this fcale i have reduced the Swedifh 
author’s obfervations, as well as thofe of Dr. 
Hales, taken from his Vegetable Statics; who i 
am pleafed to find has made ufe of the method 
above-mentioned, in his late works, and i won- 
der it is not univerfally adopted. The degrees 
below o i have marked thus, — 1. — 2. — 3, &c. 
6. My botanical obfervations were made an 
plants growing in the fields chiefly; the Swedifh 
plants growing in the Upfal garden ; which me- 
thod is belt, where either is in our power, i can- 
not determine. There are conveniences and in- 
conveniences attending each; but there is one great 
convenience viably on the fide of the garden ; 
which is, that the plants lye within a fmall corm 
pafs, and therefore may be looked over more fure- 
ly and regularly every day. 
7. I once defigned to place the two Calendars 
over-againff one another, in oppoflte pages, part 
by part, according to the days of the month, but 
upon confideration i found, the climates being 
fo different, that there would be great vacancies, 
in many of the pages ; at the fame time that the 
fame plants would be in different pages, and the 
bulk of the book would be increafed without any 
advantage to the reader; i therefore thought it 
would be better to make an index, which will 
furnifh an eafy method to the curious of com-? 
paring the two climates, 
8. If ever any ufe be made of Calendars of 
this kind, it muff be by finding out, after a long 
feries of obfervations, and publifhing by itfeif a 
R 4 " lift 
