Carpenter, William Benjamin, 1813-1885 · Philadelphia : Blakiston · leaf 391
, with intervening boundaries ; and these have now beenunmistakably proved to be depressions, lying in the interspaces ofan elevated reticulation. The reticulation presents itself in clearrelief, when viewed Binocularly with a sufficiently high power; andthe depression of its interspaces becomes… … Portion of valve of Isthmia nervosa, highly magnified, as usually seen,of Diatoms presenting this areolation, when examined with asufficient magnifying power, show the headed aspect character-istically displayed in Pleurosigma angulatum (Fig 166); and this is Fig. 164.
Microscopy · Biology
Internet Archive · Medical Heritage Library · Public Domain Mark 1.0. Free to use for anything.
