364 • DEPARTMENT OF THE NAVAL SERVICE 



8 GEORGE V, A. 1918 



Fraser, C. M. — 



1911. The hydrnids of the west coast of North Anieriea. Bulletin from the 

 Laboratories of Natural History, State University of Iowa, p. 1-91. 

 Iowa City. 



1912. Notes on New England hydroids. Ibid., p. 39-48. 



1912. Some hydroids of Beaufort, North Carolina. Bulletin of the Bureau 

 of Fisheries, vol. xxx, 1910, p. 339-387. Washington. 



1913. Hydroids from Nova Scotia, Canada Geological Survey, Victoria 

 Memorial Museum, Bulletin No. 1, pt. xvi, p. 157-186. Ottawa. 



1914. Some hydroids of the Vancouver island region. Transactions of the 

 Royal Society of Canada, 3rd ser., vol. viii, p. 99-216. Ottawa. 



1915. Pelagic hydroids, in: Exploration of the coast water between Nova 

 Scotia and Chesapeake bay, July and August, 1913, by the United States 

 Fisheries schooner " Grampus." Oceanography and Plankton. Bulletin 

 of the Museum of Comparative Zoology at Harvard College, vol. lix. No. 

 4, p. 306-314. Cambridge. 



Hargitt, C. W.— 



1901. The Hydromedusse. In three parts. American Naturalist, vol. xxxv. No. 

 412, p. 301-315 ; No. 413, p. 379-395 ; No. 415, p. 575-595, New York. 



1908. A few coelenterates of Woods Hole. Biological Bulletin of the Marine 

 Biological Laboratory at Woods Hole, Mass., vol. xiv, No. 2, p. 95-120. 

 Lancaster, Pa. 



Hartlaub, C— 



1897. Die Hydromedusen Helgolands. Wissenschaftlichen Meeresuntersu- 

 chungen, n.f., bd. ii, hft. 3., p. 449-514. Keil und I^ipzig. 



Hassall, A. — 



1852. Description of three species of marine zooi)hytes. Transactions of the 

 Royal Microscopical Society, vol. iii. London. 



Hincks, T. — 



1853. Further notes on British zoophytes, with description of new species. 

 Annals and Magazine of Natural History, 2nd ser., vol. xi. London. 



1861. A catalogue of the zoophytes of South Devon and South Cornwall, 



Ibid., 3rd ser., vol. viii. 

 1866. On new British hydroids. Ibid., 3rd vser., vol. xviii. 

 1868. A history of the British hydroid zoophytes. 2 vols. London. 



Jiiderholm, E. — 



1909. Northern and Arctic invertebrates in the collection of the Swedish 

 State Museum, iv. Hydroiden. Kongelige Svenska Vetenskaps Akade- 

 miens Handlingar, bd. 45, No. 1, p. 1-124. Stockholm. 



Johnston, G. — 



1847. History of British zoophytes, ed. ii, in two volumes. London. 



Levinsen, G. M. R. — 



1892. Om Fornyelscn af Ernsoringsindividerne hos Hydroidernc. Videnska- 

 belige Meddelelser fra den naturhistoriske Foreningi KJ0benhavn, 

 p. 12-31. 



1893. Meduser, Ctenophorer og Hydroider fra Gronlands Vestkyst tilligemed 

 Bemserkninger on Hydroidernes Systematik. Ibid., p. 143-220. 



J913, Systematic Studies on the Sertularidse. Ibid., p. 251-323,. 



