372

it accordingly freely, prefacing
that whatever I may have
to say about details does
not affect the favorable
opinion just expressed
about the work as a whole.

p. 218. lines 20-23. The sheath is
often well defined in other
orders besides [Scytonemacae?]
e.g. [Lyngbya?], [Microcoleus?], [?]
and if you consider [Triosiphon?]
as one of the [Scyotonemae?]—the
sheath is often thin.

p. 220. lines 1. & 2. How about
[Macrocystes?], [Necrocystes?] [?]
certainly they are not simple.

p. 265. lines 23 et seq. The [Fucsceae?]
are not very long lived. Many
are annuals or still shorter
lived. The true [sic.] [Fucsceae?]
are not very large certainly
not to be compared with
[Phaenogaurs?]. Few [Fucaceae?]
are as long as 10 ft although