external plasmatic layer of, [113]
Protomerite, of Gregarines, [97], [98]
Protomyxa, [89]
Protopelmatozoa, [623]
Protophytes, [3] n.
Protoplasm, [3] f.;
structure of, [6];
refractive index of, [6], [11] n.;
movements of, [7];
specific gravity of, [13] n.;