PRELIMINAKY OBSERVATIONS. 17 



find these excelled by the sea-anemones or 

 actiniee. Thus, then, the chain of being does 

 not descend in a straight unbroken line, but by 

 a series of lines, the one impinging upon the 

 following below its commencement, or vice versa, 

 the last rising above where the preceding im- 

 pinges, as in the annexed diagram. 



/ — Man. 



' fSub K. fertelirala.—Cuv. 

 \ Myclencephala. — Owen. 



Sub K. JI/o//i«c6f.— Cuv.\\ 

 Heterogavgliala. — Owen. ) 



'fSub K. Art'iciilnta. — Cuv. 

 \ Homogangliata. — Owen, 



Sub K. \ 



Nematoncura. — Owen.-\ 



-Sub K. Aciila. — Mac Leay. 



Dia<jrain uf the hear'iny, iviili respect l:> cacli other, of (he great 

 Sub-Kiiiydoms of the Animal Creation. 



