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"A genus compound radiolarians, typical of the family <i>Sphaerozoidae</i>, the protoplasm of which contains colored cellaeform bodies, and gives rise to a network of spicules forming a loose detached skeleton." &mdash;Whitney, 1889

Sphaerozoum Ovodimare

"A genus compound radiolarians, typical of the family Sphaerozoidae, the protoplasm of which contains…

"A. natural size; B. two of the sacs with colored vesicles and spicules which lie in the investing protoplasm, magnified." &mdash;Whitney, 1889 <p>A colonial radiolarian possessing siliceous spicules.

Sphærozoum Punctatum

"A. natural size; B. two of the sacs with colored vesicles and spicules which lie in the investing protoplasm,…

"Actinomma, a radiolarian with a shell and no mouth. A, whole animal with a portion of two spheres of shell removed. B, section, showing relation of protoplasm to the skeleton. c., central capsule; n, nucleus; p, protoplasm; o, openings through which the pseudopodia extend." -Galloway, 1915

Actinomma

"Actinomma, a radiolarian with a shell and no mouth. A, whole animal with a portion of two spheres of…

"Actinomma Asteracanthion, a Radiolarian with a limited number of specialized radii (axes), symmetrically arranged about the center. A, whole animal with portion of two spheres of shell removed. B, section, showing relation of the protoplasm to the skeleton. n, nucleus; p, protoplasm; sk., skeleton." &mdash; Galloway

Actinomma Asteracanthion

"Actinomma Asteracanthion, a Radiolarian with a limited number of specialized radii (axes), symmetrically…

The streaming of Protoplasm in the Amoeba. The forward motion of the granules takes place more rapidly in the centre of the pseudopodium (p). Those at the margin fall behind those in the centre as the pseudopodium advances.

Amoeba

The streaming of Protoplasm in the Amoeba. The forward motion of the granules takes place more rapidly…

Modes of cell reproduction. A, B, and C, stages in the reproduction of the Infusorian, Colpoda, by the breaking up of the protoplasm to form numerous cells. A, encysted stage; B, protoplasm escaping, spores partly formed; C, spores completely separated; D, budding in Chlamydomyxa, a lowly Rhizopod. b, bud; cw., cell wall; m, mother cell; n, nuclear matter; s, spores.

Cell Reproduction

Modes of cell reproduction. A, B, and C, stages in the reproduction of the Infusorian, Colpoda, by the…

A typical cell consists of two portions, one, te firmer, forming an excessively delicate meshwork enclosing its cavities the second more fluid part. Therefore, when highly mangnified, the appearance would be essentialluy like a sponge fully saturated with water. The protoplasm the sponge work, and possibly the fluid part is living and both are transparent.

Typical amimal cell

A typical cell consists of two portions, one, te firmer, forming an excessively delicate meshwork enclosing…

Diagram of a cell. Labels: p, protoplasm; n, nucleus; c, centrosome.

Cell, Diagram of

Diagram of a cell. Labels: p, protoplasm; n, nucleus; c, centrosome.

A typical vegatable cell in a plant.

Vegetable Cell

A typical vegatable cell in a plant.

"Cellular Connective Tissue, showing large vacuoles. v, in the protoplasm." -Galloway, 1915

Connective Tissue

"Cellular Connective Tissue, showing large vacuoles. v, in the protoplasm." -Galloway, 1915

"Formation of shell in a simple Foraminifer. In A the shell has one chamber; B, C, and D show the formation of a second. Note outflowing pseudopodia and the enclosure of the shell by a thin layer of protoplasm; note also the nucleus in the central protoplasm." -Thomson, 1916

Foraminifer Shell Formation

"Formation of shell in a simple Foraminifer. In A the shell has one chamber; B, C, and D show the formation…

"Liteocircus annularis. cent. caps, central capsule; ext. caps. pr, extra-capsular protoplasm; int. cap. pr, intra-capsular protoplasm; nu, nucleus; psd, pseudopods; skel, skeleton; z, cells of zooxanthella." -Parker, 1900

L. Annularis

"Liteocircus annularis. cent. caps, central capsule; ext. caps. pr, extra-capsular protoplasm; int.…

"Plain muscle fibres. n, nucleus of muscle cell; p, undifferentiated cell protoplasm; p', the differentiated contractile portion of the cell." &mdash; Galloway

Muscle Fibres

"Plain muscle fibres. n, nucleus of muscle cell; p, undifferentiated cell protoplasm; p', the differentiated…

"A compound foraminiferan, Nodosaria. a, aperture of shell; f, food particles captured by the strands of protoplasm outside the shell; n, nucleus; sh, shell, 1-4, the successive chambers of the shell; 1, being the oldest." &mdash; Galloway

Nodosaria

"A compound foraminiferan, Nodosaria. a, aperture of shell; f, food particles captured by the strands…

The circulation of protoplasm (p) in a cell of the stamen-hair of Tradescania. In the channels the granules move back and forth to the various parts of the cell. The remainder of the cell is filled with cell-sap (s) which in these cells is colored.

Protoplasm

The circulation of protoplasm (p) in a cell of the stamen-hair of Tradescania. In the channels the granules…

"Ovum of a Sea-Urchin, showing the radially striated cell-membrane, the protoplasm, containing yolk-granules, the large nucleus (germinal vescicle), with its network of chromatin and a large nucleolus (germinal spot)." -Parker, 1900

Sea Urchin Ovum

"Ovum of a Sea-Urchin, showing the radially striated cell-membrane, the protoplasm, containing yolk-granules,…

A vegetable cell.

Vegetable Cell

A vegetable cell.