OUTRAM, D. N. 
1957. Guide to marine vegetation encountered during herring 
spawn surveys in southern British Columbia. Fisheries 
Research Board of Canada, Biol. Sta. Cir. hh, 3 p. 
PATTERSON, H. N. : 
1892. Numbered check-list of North American plants. Oquawka, Ill. 
PECK, M. E. 
1961. <A manual of the higher plants of Oregon. Binfords & Mort, 
Portland. 
PENHALLOW, D. P. 
1896-97. Contributions to the Pleistocene flora of Canada. 
Trans. Roy. Soc. Canada, 2d. ser. II, sect. IV: 59-77. 
1898. Committee, Canadian pleistocene Flora and Fauna, Brit. 
Assoc. Adv. Sci., p. 522-529. 
PERRING, F. H., and M. WALTERS. 
1962. Atlas of the British flora. Bot. Soc. Brit. Isles. 
Thos. Nelson & Sons, London. 432 p. 
PETERSEN, C. G. J. 
1891. Fiskenes biologiske Forhold i Holbaek Fjord. Rept. 
‘“» Danish Biol. Sta., 1: 1-63. 
1893a. The pelagic life in Faeno Sound. Rept. Danish Biol. 
Sta. 9 33 1-38, 
1893b. Det videnskabelige Udbytte af Kanonbaaden Hauchs Togter. 
Kobenhavn. 
1900. List of the "Aalerusestader" in Denmark. Rept. Danish 
Biol. Sta., 10: 1-37. 
1912. Uber Menge und Jaresprodktion der Benthospflanzen an den 
westeuropaischen Kusten. Gnt. Rev. d. ges. Hydrobiol. in 
Hydrographie, p. 47-52. 
(1913- Valuation of the sea. II. The animal communities of the 
sea bottom and their importance for marine zoogeography. 
Rept. Danish Biol. Sta., 21: 1-44. 
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