This volume contains reprints of several of his earlier papers on protoplasm and cell theory.
The blue-stained protoplasm is indicated by light stippling, the deeply-staining chromatin by black, and the pink or faintlystaining chromatin by close stippling.
The latter has a somewhat spiral form, the protoplasm being alveolar and at times showing a granular structure.
Molecules of dyestuffs became probes and measuring devices "by proxy"; and with respect to behavior toward oxygen they were analogous to protoplasm.
The cellular organization of plants and animals was then of secondary importance behind the more essential chemical and physical properties of living protoplasm.
One finds large masses of these pairs of forms in which the nucleus is hidden in the darkly staining protoplasm.
This also highlighted the important distinction from theories of combustion which considered oxidation as taking place throughout the protoplasm, rather than at specific sites.
The protoplasm is very dense and contains granules.
