Cure for fungus, [50]
Cut-throat trout, [76]-8
Cyclops quadricornis, [12], [48], [65]-6
Cypridæ, [65]-6
Dace, [18], [89]-90
suitable water for, [18]
Daphnia pulex, [12], [48], [65]
Dead alevins, removal of, [41]
Dead ova, removal of, [37]
Difference between beetles and Corixæ, [11]