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On the Darling Range is found a red cellular structure capping the granite, assuming all the appearance of having been subjected to fire; it extends also in the low country about that neighbourhood. Slate of a primitive character is found on the Canning River. The mountain chain or Darling Range runs nearly in the direction of north and south.
In a similar way any bit of vegetable tissue would readily show itself to be made of similar cells. In animal tissues the cellular structure is not so easily seen, largely because the products made by the cells, the formed products, become relatively more abundant and the cells themselves not so prominent. But the cellular structure is none the less demonstrable.
And the botanist who finds that the apple falls because the cellular tissue decays and so forth is equally right with the child who stands under the tree and says the apple fell because he wanted to eat it and prayed for it.
Build underneath and each way from the ends of the box a cellular hull to float it; place within it, and below the box, magazines, boilers, and engines; construct above, between the turrets, a lighter superstructure to hold additional quick-fire guns and torpedo-tubes; cap the whole with a military mast supporting fighting-tops, and containing an armored conning-tower in its base; man and equip, provision and coal the fabric, and you can go to sea, confident of your ability to destroy everything that floats, except icebergs and other battle-ships.
And although it may be difficult, in some instances, to draw the precise line between certain low mycological forms and the amoeboid and some other primitive manifestations of animal life, yet all vegetable physiologists agree in assigning a purely vegetable origin to all the primary groups of fungi their general cellular character determining their proper place in classification.
It has created and developed bony structures of the requisite strength, and clothed them with cellular tissue of such amazing sensitiveness that the organs it forms will adapt their action to all the normal variations in the air they breathe, the food they digest, and the circumstances about which they have to think.
The whole membrane of the mouth becomes affected; the inflammation and swelling extend to the cellular substance of the neighbouring parts, and the head and neck are considerably, and sometimes enormously, enlarged; the respiratory passages are obstructed; the animal breathes with the greatest difficulty, and is, in some cases, literally suffocated.
The commonest type is a chronic synovitis or hydrops, in which the joint very often the knee becomes filled with a serous or sero-fibrinous exudate. There are no reactive changes in the synovial membrane, cellular tissue, or skin, nor is there any fever or disturbance of health. The movements are free except in so far as they are restricted by the amount of fluid in the joint.
Tuberculosis occurs more frequently in some situations than in others; it is common, for example, in lymph glands, in bones and joints, in the peritoneum, the intestine, the kidney, prostate and testis, and in the skin and subcutaneous cellular tissue; it is seldom met with in the breast or in muscles, and it rarely affects the ovary, the pancreas, the parotid, or the thyreoid.
#Structure of Skin.# The skin is composed of a superficial cellular layer the epidermis, and the corium or true skin. The epidermis is differentiated from without inwards into the stratum corneum, the stratum lucidum, the stratum granulosum, and the rete Malpighii or germinal layer, from which all the others are developed.
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