Figures 2 and 3.—Kidney of control fish (a) and of fish exposed to 48 ppm cadmium for 96 hr (b). Note diffuse tubular necrosis in 2b. 
Tubular epithelium in various stages of degeneration can be seen in 3b. Note the swollen nuclei of still intact epithelial cells and 
cellular debris in the dilated lumina. 120 (2), 300 (3); Azure-eosin stain. 
Table 1.—Effects of 96-hr exposure to cadmium chloride on differential leucocyte counts of cunners, Tautogolabrus adspersus 
(figures are averages, standard deviation in parenthesis). 
Leucocytes (%) 
Cadmium 
exposure No. Mature Small Medium 
(ppm) sampled thrombocytes Neutrophils lymphocytes lymphocytes Eosinophils Blasts Monocytes 
0 8 69.3 (410.8) 15.6 (+9.1) 11.2 (+3.9) 2.2 (+0.7) 0.7 (+0.7) 1.1 (+1.2) 0 
3 9 65.3 (£10.1) 18.5 (+10.3) 10.3 (+4.9) 2.4 (41.4) 0.6 (40.4) 2.9 (438.3) 0 
6 8 60.5 (£16.3) 23.7 (+19.1) 9.3 (+5.6) i 3 (42.3) 1.2 (0.5) 2.3 (1.7) <0.1 
12 9 65.2 (416.5) 24.1 (+16.3) 7.5 (£4.9) 3 (41.0) 0.6 (+0.5) 1.6 (40.5) <0.1 
24 9 56.3 (420.8) 32.1 (419.3) 6.4 (+4.6) i 6 (+0. 9) 0.6 (40.6) 3.0 (+2.6) <0.1 
48 10 35.9 (412.4) 50.2 (412.4) 4.5 (44.8) 1.5 (+1.1) 1.4 (41.1) 6.1 (+4.8) 0 
29 
