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.

• A text-book of entomology including the anatomy, physiology, embryology and metamorphoses of insects, for use in agricultural and technical schools and colleges as well as by the working entomologist
  المؤلفون: Packard, A. S.
• Report on the Rocky Mountain locust and other insects now injuring or likely to injure field and garden crops in the western states and territories
  المؤلفون: Packard, A. S.
• Our common insects A popular account of the insects of our fields, forests, gardens, and houses.
  المؤلفون: Packard, A. S.