AMONG some small organisms including a single ostracod shell, washed from a sample of clay brought to me for identification by Dr. W. A. Macfadyen, was a small tapering object about 1 3 mm. long, ...

HÆMOGLOBIN has only recently been found in free-1iving copepods. Munro Fox 1 found that certain mud-dwelling harpacticoids contained this respiratory pigment, while allied species living in moss or ...