242 Ricc: SALINITY AND THE DISTRIBUTION OF NEREOCYSTIS 
referred to was found by Dr. T. C. Frye in a marsh near Toke 
Point, Washington. 
While the writer has not made any detailed investigations in 
regard to the growth of Laminariaceae near the mouth of any 
other river than the Elwha, his general observations as well as his 
conversations and correspondence with other observers lead him 
to believe that kelps are to be looked for in this region only where 
the water has practically the normal salinity of sea water. 
UNIVERSITY OF WASHINGTON, SEATTLE. 
