EUDENDEIUM. 113 



nessed, very satisfactorily, a circulating fluid in this zoo- 

 phyte. Dark particles are seen ascending one side of the 

 neck, and descending by the other, as if conveyed by the 

 current of a fluid. The current is chiefly visible at the 

 lower part of the head. The rate of the current is not re- 

 gular, sometimes quick and sometimes slow, and at times 

 quite suspended yet without evident injury. 



" The provision of Nature," he subjoins, " for conduct- 

 ing a vivifying principle throughout the whole extent of 

 animal organization, whereby it shall impart vigour to the 

 remotest parts, surpasses all the admiration which mortals 

 can bestow upon it; and this marvellous expedient is 

 rendered still more wonderful by reflecting on the means 

 adopted for its impregnation with atmospheric qualities, de- 

 vised for the common sustentation of the universe. Every- 

 thing conspires to show the grandeur of the plan from 

 whence the \vorld was originated." 



The animal, though so flexible itself, has no power over 

 the comparatively rigid tube it inhabits. When Sir J. G. 

 Dalyell cut two portions from a specimen, he found them 

 rooted to the glass in which they lay, in the course of a 

 night. 



