THE SIZE OF KELPS ON THE PACIFIC COAST OF 
NORTH AMERICA =. 
T. C. Frye, G. B. Rice, anp W. C. CRANDALL 
: (WITH TWO FIGURES) 
Introduction 
The personal observations of the authors on the size of kelps 
have covered much of the west coast of North America from Cedros 
Island on the coast of Mexico to the Shumagin Islands on the coast 
of western Alaska. 
The work of Frye has been done during ten summers spent on 
Puget Sound, during several of which he has been director of the 
Puget Sound Marine Station at Friday Harbor, Washington, and 
one summer (1913) during which he was in charge of the expedition 
sent to southern Alaska by the United States Bureau of Soils for the 
purpose of investigating the kelps as a source of potash fertilizer." 
The investigations of that summer included a careful examination 
of the coast from Dixon Entrance to Juneau (not including the west 
coast of Baranof Island), together with observations on kelps at a 
number of points along the coast of British Columbia where 
opportunity offered on the way to Alaska in May. 
The observations of RiGG cover six summers in the Puget 
Sound region, portions of three of which were spent at the Puget 
Sound Marine Station, and portions of two of which were spent in 
making a survey of the kelp beds of the Puget Sound region for the 
United States Bureau of Soils as a part of its investigation of those 
kelps as a source of potash fertilizer. Ru1ce’s Alaskan observations 
were made during the summer of 1913 when he was in charge of the 
United States Bureau of Soils expedition to western Alaska for the 
investigation of the kelps of that region as a source of potash 
* All of the kelp investigation expeditions of which the writers of this paper were 
in charge were a part of the general investigation of the fertilizer resources of the 
United States conducted by Dr. FRanK K. CAMERON of the United States Bureau of 
Soils, 
473] [Botanical Gazette, vol. 60 
