Carpenter, William Benjamin, 1813-1885, Dallinger, W. H. (William Henry), 1842-1909 · Philadelphia, Blakiston · leaf 719
tic and other oceans. Two distinct types are recognisable amongthe coccoliths, which Professor Huxley has designated respectivelydiscolilhs and cyatholiths. The former are round or oval discs, having 1 See especially the recent admirable work of Professor Leidy on the fresh-waterrhizopods of the… … COCCOLITHS AND COCCOSPHERES 673 a thick strongly refracting rim and a thinner internal portion, thegreater part of which is occupied by a slightly opaque, cloud-likepatch lying round a central corpuscle (fig. 523, 5). In general, the discoliths are slightly convex on one side, slightly concave on…
Microscopy
Internet Archive · Wellesley College Library · Public Domain Mark 1.0. Free to use for anything.
