go (ECONOMY; 
places. Thus the fpring, the morning, and 
youth are proper for generation ; the fummer, 
noon, and manhood are proper for preferva- 
tion j and autumn, evening, and old age are 
not unfitly likened to deftrudion. 
§• 3 - 
The foffil kingdom. 
Propagation. 
It is agreed on all hands, that (tones are 
not organical bodies, like plants, and animals ; 
and therefore it is as clear that they are not 
produced from an egg, like the tribes of the 
other kingdoms. Hence the variety of foflils 
is proportionate to the different combinations 
of coalefcent particles, and hence the fpecies 
in the foffil kingdom are not fo diflind, as 
in the other two. Hence alfo the laws of ge- 
neration in relation to foffils have been in all 
ages extremely difficult to explain ; and laftly 
hence have arifen fo many different opinions 
about them, that it would be endlefs to enu- 
merate them all. We therefore for the prefen t 
will content ourfelves with giving a very few 
©bfervations on this fubjed* 
That 
