Aulacodiscus, characters of genus, xlviii, 203.
Bacillaria, sketch of, J. W. Bailey, xli, 284f; xlii, 88f; xliii, 321.f
— paradoxa, xlii, 101.f
— tabellaris, xlii, 102f;
–B. — ? 102.f
Biddulphia — ? xlviii, 336.f
Chætoceros, xlviii, 328.f
Closterium, xli, 297.f
— digitus, xli, 302.f
— lineatum, xli, 303.f