كتب ذات صلة

Studies in the theory of descent.

Record of my life-work in entomology

Protective resemblance in the insecta

Pr�ecis des caract�eres g�en�eriques des insectes dispos�es dans un ordre naturel.

• Shade tree pests in New York state.
  المؤلفون: Felt, Ephraim Porter
• A new Diadiplosis
  المؤلفون: Felt, Ephraim Porter
• Insects injurious to forest trees.
  المؤلفون: Felt, Ephraim Porter

• Report of the State Entomologist on injurious and other insects of the state of New York.
  المؤلفون: Felt, Ephriam Porter
• Report of the State Entomologist on injurious and other insects of the state of New York.
  المؤلفون: Felt, Ephriam Porter
• Report of the State Entomologist on injurious and other insects of the state of New York.
  المؤلفون: Felt, Ephriam Porter