APPENDIX I 



Tadle I 



205 



FREQUENCY OF OCCURRENCE OF LARVAE AND NEOTENICS IN 

 POPULATIONS OF TADPOLES SOME OF WHICH AlU: INFESTED 



m = 9-76 

 ^^ for this distribution = 2,126 



m - 1-54 

 ^^ for this distribution = 292 



{c) The Relations between the Size of the Tadpoles and the 

 Presence of Neotenics 



Table 2 



The numbers in brackets are those expected if the distribution had been 

 random. ^^ for this distribution = 0-37, and the probabihty of this happening 

 by chance is more than 0-5. There is no significant connexion between presence 

 of neotenics and size of the tadpoles. 



[d) The Signihcance of the Association of Frog-ponds with Geology 



In this and other contingency tables, the figures in brackets are those expected 

 on the hypothesis that there is no relation between the variables. 



