13716 smithsonian institution washington may 8 1867 the bearer of this letter mr robert ridgway of illinois visits the pacific coast in the capacity of zoologist of the u s geological exploration of the 40th parallel in charge of clarence king and in his official capacity as a naturalist and as a much esteemed correspondent of the smithsonian institution we commend him to the attention of the friends of science generally and of the correspondents of the institution spencer f baird asst sec s i
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