394 
PACIFIC SCIENCE, Vol. XXII, July 1968 
Geologic Dredges 
The rock dredges were made of l/^-inch iron 
pipe, 14 inches in diameter and cut into 3-foot 
lengths. An iron grating was welded across one 
end and a 4-foot chain bridle attached to the 
other end. The cutting edges of the dredges were 
sharpened and tempered. 
REFERENCES 
Bennett, E. B., and M. B. Schaefer. I960. 
Studies of physical, chemical, and biological 
oceanography in the vicinity of the Revilla 
Gigedo Islands during the "Island Current 
Survey" of 1957. Int.-Am. Trop. Tuna 
Comm. Bull. 4(5) :219-257. 
Chamberlain, T., and Marine Advisers. 
1964. Analysis of Littoral Processes, Kahe, 
Oahu. Prepared for Hawaiian Electric Com- 
pany, Honolulu, Hawaii, 62 pp. 
Gran, H. H. 1931. On the conditions for the 
production of plankton in the sea. Rept. 
Internatl. Council Expl. Sea 75:37-46. 
Isaacs, John D., and R. A. Schwartzlose. 
1965. Migrant sound scatterers: Interaction 
with the sea floor. Science 150:1810-1813. 
Jones, E. C. 1962. Evidence of an island effect 
upon the standing crop of zooplankton near 
the Marquesas Islands, Central Pacific. J. 
Internatl. Council Expl. Sea 27:3. 
Laevastu, T., et al. 1964. Coastal Currents and 
Sewage Disposal in the Hawaiian Islands: 
Hawaii Inst. Geophys. Tech. Rept., 64-1, 
101 pp. 
Latham, R. C. 1967. Kauai Channel Currents. 
Master of Science Thesis, University of 
Hawaii, 128 pp. 
Menard, H., E. Allison, and J. Durham. 
1962. A Miocene terrace in the Hawaiian 
Islands. Science 138:896-897. 
Moberly, R., et al. 1965. Source and variation 
of Hawaiian littoral sand. J. Sed. Petrology 
35(3) :589-59S. 
Moberly, R., and T. Chamberlain. 1964. 
Hawaiian Beach Systems. Hawaii Inst. 
Geophys. Rept. 64-2. 
Moore, H. B. 1949. The zooplankton of the 
upper waters of the Bermuda area of the 
North Atlantic. Bull. Bingham Oceanogr. 
Coll., Vol. 12, Article 2, 97 pp. 
Ruhe, R. V., J. M. Williams, and E. L. Hill. 
1964. Shorelines and submarine shelves, 
Oahu, Hawaii. J. Geol. 73:485-497. 
Sargent, M. C., and T. S. Austin. 1949. 
Organic productivity of an atoll. Trans. Am. 
Geophys. Union 30:245-2 49. 
Stearns, H. T. 1966. Geology of the State of 
Hawaii. Pacific Books, Palo Alto, California. 
266 pp. 
