An ecological study of the fresh-water sponges of Wisconsin, II. The influence of calcium

[1] Birge E. A., 1911, WIS GEOL NAT HIST SU, V22, P81

[2] Jewell M. E., 1935, Ecological Monographs, V5, P461, DOI 10.2307/1943036

[3] JUDAY C, 1938, T WIS ACAD SCI ARTS, V31, P223

[4] JUDAY C, 1914, WIS GEOL NAT HIST SU, V27, P100

[5] Niedhoefer J. R., 1938, Transactions of the American Microscopical Society, V57, P82

[6] OLD M. C., 1932, TRANS AMER MICROSC SOC, V51, P129, DOI 10.2307/3222428

[7] Smith F., 1921, ILLINOIS DEP REGIST, V14, P9

[8] STEPHENS J, 1920, P ROY IRISH ACAD, V35, P204

[1] Birge E. A., 1911, WIS GEOL NAT HIST SU, V22, P81

[2] Jewell M. E., 1935, Ecological Monographs, V5, P461, DOI 10.2307/1943036

[3] JUDAY C, 1938, T WIS ACAD SCI ARTS, V31, P223

[4] JUDAY C, 1914, WIS GEOL NAT HIST SU, V27, P100

[5] Niedhoefer J. R., 1938, Transactions of the American Microscopical Society, V57, P82

[6] OLD M. C., 1932, TRANS AMER MICROSC SOC, V51, P129, DOI 10.2307/3222428

[7] Smith F., 1921, ILLINOIS DEP REGIST, V14, P9

[8] STEPHENS J, 1920, P ROY IRISH ACAD, V35, P204