39(3 



EVE XING S AT THE MICROSCOPE 



springs, like the foot of a tree, from the margin of a cell, 

 which penetrates the substance of the mass, into which we 

 can see far down, and into which the whole of the now 

 extended and expanded blossom was withdrawn when we 

 first saw it, leaving only the shallow depression to mark 

 its situation. 



The form of the column is in general that of the trunk 

 of a tree, or that of a long cone; but there is a sudden 

 constriction just above the base, and another below the 



POLYPES OF COW S-PAP. 



point, where what may be called the flower expands. It 

 is the petals of this latter which constitute the principal 

 charm of this creature. They are, properly speaking, the 

 tentacles of the Polype, answering in function and position 

 to those on the Laomedea, but differing considerably from 

 them in form. Each of the eight is thick and broad at 

 its origin, and quickly tapers to a point: on each of two 

 opposite sides viz., those which look toward the two ad- 

 joining tentacles runs a row of delicately slender fila- 

 ments, which at the middle part of the tentacle are moder- 



