270 APPENDIX. 



TABLE XVI. 

 GENETIC CYLE OF THE ARTICULATA GENERALLY 



PROTOMORPHIC STAGE, 



(merged in the following). 

 The Germinal Mass. 



ORTHOMORPHIC STAGE: 



The Embryo, 

 [passing through the conditions of Larva and Pupa . ] 

 Imago or perfect form, 

 Male and Female, 



GAMOMORPHIC STAGE, 



(merged in the foregoing). 

 Spermary, Ovary. 



Primary Sperm Cell, Ovum. 



Special Sperm Cells | f Germinal Vesicle 

 and Spermatozoa, j \ and Macula. 



FECUNDATION. 



TABLE XVII. 

 GENETIC CYCLE OF THE APHIDES. 



PROTOMORPHIC STAGE, 



(merged in the following). 

 The Germinal Mass. 



ORTHOMORPHIC STAGE. 



The Embryo, extruded from the Egg as a 

 Hexapod Larva. 



Repeated pulhdations of other like Lar^'^f^. 



Larvae at the close of the series passing into 

 Perfect Insects, 

 (Male and | Female). 



GAMOMORPHIC STAGE, 



(merged in the foregoing). 



Spermary, j Ovary. 



Primary Sperm Cells, Ovum. 



Special Sperm Cells ) ( Germinal Vesicle 



and Spermatozoa, j \ and Macula. 



FECUNDATION. 



