I4O STUDIES OF NATURE. 



There are others which, inftead of clofing their 

 petals, invert them, which produces nearly the 

 fame effect ; fuch is the flower of the camomile. 

 Others are perpendicular to the Horizon, as the 

 flower of Lettuce. The blue colour, with which it 

 is tinged, contributes, farther, towards weakening 

 the rays of the Sun, which, in this afped, would 

 act too vehemently upon it. Others have only 

 four horizontal petals ; fuch as the cruci-form ; 

 the fpecies of which are very common in hot 

 countries. Others bear, around their dilk, flow- 

 rets which overlhadow it ; fuch is the blue-bottle 

 of the corn-field, which is reprefented on the plate 

 in oppofition to the daify. This laft flowers early 

 in the Spring, and the other in the middle of 

 Summer. 



We have faid fomewhat of the general forms of 

 flowers, but we (hould never come to a conclu- 

 sion, were we to enter into a difcuflion of their 

 various aggregations. I believe, however, that 

 they may be referred to the plan itfelf of the 

 flowers. Thus the umbelliferous flowers prefent 

 themfelves to the Sun under the fame afpecls as the 

 radiated. 



I mufl beg leave to recapitulate only what has 

 been faid reflecting their reflecting mirrors. The 



reverberated 



