[None. Introduction starts as:]
Practically nothing was known of the annelids of the North Pacific coast before Johnson's valuable reports of 1897 and 1901 - the first entitled 'A Preliminary Account of the Marine Annelids of the Pacific Coast,' the other 'The Polychaeta of the Puget Sound Region.' This is especially true of Alaska, a few species only having been recorded north of Vancouver Island, British Columbia; therefore the collections made by Dr. William E. Ritter, of the University of California, and Dr. Wesley R. Coe, of Yale University, as members of the Harriman Alaska Expedition of 1899, are of great interest.