270 APPENDIX. 



TABLE XVI. 

 GENETIC GYLE OF THE ARTLCULATA 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). 

 Spennary, Ovary. 



Primary Sperm Cell, Ovum. 



Special Sperm Cells ") ( Germinal Vesicle 

 and Spermatozoa. ) (. 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 pullulations of other like Larvae. 



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. ) ^. and Macula. 



FECUNDATION. 



