BIOLOGICAL SURVEY OF WOODS HOLE AND VICINITY. 433 
DENSITY CHART 
AUGUST 1907 
UPPER FIGURE DENOTES DENSITY AT SURFACE 
LOWER Be ” ” *»> BOTTOM 
Cuart 215.—Density throughout Buzzards Bay and Vineyard Sound, August, 1907. 
16269°—Bull. 31, pt 1—13 28 
