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Affinities of the Sponges. 89 
we Sponges, and Infusoria. It matters very little that Pro- 
essor Hiickel is “ entirely upsetting the clear limits by which 
subkingdom designated Protozoa, in company, we suppose (for 
Mr. Kent does not say what are the limits of his subkingdom), 
with Monera, Amceboidea, Foraminifera, Gregarine, Radio- 
laria, and Infusoria. Mr. Kent says that if we view the com- 
sae sponge-organism as an aggregation of Amcebe (or, as 
r. James-Clark would say, as far as the Calcispongie are 
concerned, of flagellate Monades), “the affinity of the Spon- 
