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CELL INTELLIGENCE THE CAUSE OP EVOLUTION 



man-of-war. In a book on Zoology it is briefly described 

 as follows : 



"One of the most remarkable and best known of this 

 group. It consists of a pear shaped and elegantly crested 

 air sac floating lightly upon the surface of the water and 

 giving off from its under surface numerous long and var- 

 ied appendages. These appendages are the different mem- 

 bers of the community and perform different functions, 

 some eating for the whole, others producing medusi buds 



FIG. 12. Microgromia socialis. A, entire colony; B, single zooid; C, has 

 undergone binary fission, with one of the daughter-cells creeping out of the 

 shell; D, flagellula; c. vac. contractile vacuole; nu. nucleus; sh. shell. 



and others being the locomotive members, the latter hav- 

 ing tentacles with powerful stingers that stretch out be- 

 hind the floating community. The air sac is three or four 

 inches long." 



The social community of cells that build this structure 

 called Portuguese man-of-war, show wonderful skill, as 

 they are able to sink or swim at will. The Albatross Ex- 

 pedition describes them as follows : "The slime on the 

 sea weed for instance may have come from a most poison- 

 ous jellyfish known as the Portuguese man-of-war, that 



