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Full text of "The phyla and classes of animals : arranged to show their supposed relationships"

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Sa reteset X15 P vs . 
mEsoLoA ied N é The Phyla and Classes of Animals Ar- 
ranged to show their Supposed Relation- 


ships. 


Copyright, 1909, by W. P. Hay. 
isle 


Nore:—Classes which are entirely extinct are 
represented by name only; those which consist 


of minute or microscopic forms have the repre- 
The approximate 


degree of enlargement or reduction is indicated PROTOZOA 
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‘ 


by the small figures near each picture. 


sentative enclosed in a circle. 


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COLLECTION 


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