كتب ذات صلة

On the so-called Dimorphism in the Genus Cambarus.

Observations on the Astacidae in the United States National Museum and in the Museum of Comparative Zoology with descriptions of new species.

Notes on North American Crayfishes, family Astacidae.

Monograph of the North American Astacid�.

• Variation and correlation in the crayfish with special reference to the influence of differentiation and homology of parts.
  المؤلفون: Pearl, Raymond
• Poisonous properties of the whorled milkweeds Asclepias pumila and A. verticillata var. geyeri.
  المؤلفون: Marsh, Charles Dwight ,  Clawson, Arthur Brooks
• Modes of research in genetics.
  المؤلفون: Pearl, Raymond

• The water-relation between plant and soil
  المؤلفون: Livingston, Burton Edward ,  Hawkins, Lon Adrian
• The venom of Heloderma
  المؤلفون: Loeb, Leo
• Studies on the germ cells of aphids.
  المؤلفون: Stevens, Nettie Maria