ISO UPON ANIMAL INDIVIDUALITY 



Without a misuse of words, however, no one would call this a 

 separate individual. 



In conclusion the Lecturer stated his own views thus : 



The individual animal is the sum of the phenomena presented b^ 



a single life : in other words, it is all those animal forms which 



proceed from a single egg taken together. 



The individual is represented in very various modes in the Animal 



Kingdom : these modes pass insensibly one into the other in nature - 



but for purposes of clear comprehension they may be thus distinguished 



and tabulated. 



Representation of the Individual. 



I. By Successive Inseparable F"orms. 



Ascaris. A. Forms little different = Growth. 



Triton. B. Forms markedly different = Metamorphosis. 



II. By Successive Separable Forms. 



I . Earlier Forms not Independent. 



Cockroach. A. Forms little different = Growth with Ecdysis. 

 Beetle. B. Forms markedly different = Growth with Metamor- 



phosis. 



2. Earlier Forms partially Independent. 

 Starfish. 



III. By Successive and Co-existent Separable Forms. 



a. External Gemmation. b. Internal Gemmation. 



A. Forms little different. All the forms produce eggs. 



^•^"^ '- Gyrodactylus. 



Hydra. ) 



B. Forms markedly different. Last forms only produce eggs. 

 *^* Last Forms produced. 

 Generally : 

 Medusa. \ Fluke. 



Locally : 

 Salpa. J Aphis. 



These various modes of Representation of the Individual are 

 ultimate facts. One is neither more nor less wonderful or explicable 

 than another ; any theory which pretends to account for the Suc- 

 cessive and Co-existent forms of the Aphis-individual must also 



