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Factors affecting the number of species in freshwater protozoan communities. Aquatic Microbial Communities. :257-304.. 1977.
Amebae in forty-eight hours. The American Biological Teacher. 28:108-111.. 1966.
A checklist of the fresh-water protozoa of the Douglas Lake region, Michigan. Notulae Naturae of the Academy of Natural Sciences of Philadelphia. 383:1-10.. 1966.
Colonization of artificial substrates by protozoa: replicated samples. Archiv fur Protistenkunde. 118:259-267.. 1976.
Colonization of polyurethane substrates by fresh-water protozoans. Journal of the Elisha Mitchell Scientific Society. 87:71-72.. 1971.
A comparison between numbers and kinds of freshwater protozoans colonizing autoclaved and unautoclaved polyurethane substrates. Applied and Environmental Microbiology. 31:750-753.. 1976.
A comparison of fresh-water protozoan communities in geographically proximate but chemically dissimilar bodies of water. Archiv fur Protistenkunde. 115:154-161.. 1973.
A comparison of vascular vegetation and protozoan communities in some freshwater wetlands of northern lower Michigan. Hydrobiologia. 83:353-375.. 1981.
A condition in blood cells of Natrix with reference to Cytamoeba and Toddia. I. Description. Journal of the Elisha Mitchell Scientific Society. 80(2). 1964.
A condition in blood cells of Natrix with reference to Cytamoeba and Toddia. II. Mechanical transmission. Journal of the Elisha Mitchell Scientific Society. 81. 1965.
The consequences of nonselective periodic removal of portions of fresh-water protozoan communities. Transactions of the American Microscopical Society. 90:71-80.. 1971.
The distribution of fresh-water protozoa on a relatively homogeneous substrate. Hydrobiologia. 31:65-72.. 1968.
The effect of an influx of new species on the diversity of protozoan communities. Revista de Biologia. 9:187-206.. 1973.
The effects of substrate quality upon colonization by freshwater protozoans. Revista de Biologia. 10(1-4):13-20.. 1976.
The influence of natural perturbation on protozoan communities inhabiting artificial substrates. Transactions of the American Microscopical Society. 95:646-653.. 1976.
Long term exposure of artificial substrates to colonization by protozoans. Journal of the Elisha Mitchell Scientific Society. 81:115-119.. 1973.
Micro-habitat pH differences from those of the surrounding water. Hydrobiologia. 38:453-461.. 1971.
An observation on the protozoan communities in the bottom sediments of Lake Huron. Revista de Biologia. 7:151-153.. 1970.
The protozoan colonization of polyurethane foam units anchored in the benthic area of Douglas Lake, Michigan. Transactions of the American Microscopical Society. 92:648-656.. 1973.
Protozoan colonization rates on artificial substrates suspended at different depths. Transactions of the American Microscopical Society. 93:206-210.. 1974.
Protozoan species accrual on artificial islands in differing lentic and wetland systems. Hydrobiologia. 75:161-178.. 1980.
Qualitative differences in protozoan colonization of artificial substrates. Hydrobiologia. 51:233-237.. 1976.
The relationship between number of protozoan species and duration of habitat immersion. Revista de Biologia. 9:35-42.. 1973.
The role of flagellates in pioneer protozoan colonization of artificial substrates. Polskie Archiwum Hydrobiologii. 25:787-801.. 1978.
Survival of Euglena gracilis exposed to sublethal temperature and hexavalent chromium. Journal of Protozoology. 26:122-125.. 1979.
Vertical gradients in artificial substrate-associated protozoan community structure in a stratified freshwater lake. Journal of the Elisha Mitchell Scientific Society. 92:1-8.. 1976.