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I say that this functional difference is vast, unfathomable, and truly infinite in its consequences; and I say at the same time, that it may depend upon structural differences which shall be absolutely inappreciable to us with our present means of investigation. What is this very speech that we are talking about?
It is a commonly received doctrine, however, that the structural intervals between the various existing modifications of organic beings may be diminished, or even obliterated, if we take into account the long and varied succession of animals and plants which have preceded those now living and which are known to us only by their fossilized remains.
It is no doubt perfectly true, in a certain sense, that all difference of function is a result of difference of structure; or, in other words, of difference in the combination of the primary molecular forces of living substance; and, starting from this undeniable axiom, objectors occasionally, and with much seeming plausibility, argue that the vast intellectual chasm between the Ape and Man implies a corresponding structural chasm in the organs of the intellectual functions; so that, it is said, the non-discovery of such vast differences proves, not that they are absent, but that Science is incompetent to detect them.
The tall office building is the product of many forces, or perhaps we should say one force, that of necessity; but its concrete embodiment is the result of two different orders of talent, that of the structural engineer and of the architectural designer. These are usually incarnate in two different individuals, working more or less at cross purposes.
He seems to have paid no heed to classic precedent, and to have taken no pains to adapt the parts to the structural purpose of the building.
Efficiency engineering is a branch which to-day is making a strong bid for recognition as a profession, although the work as yet, lacking, as it does, proper foundation in scientific truth, even though strongly humanitarian in its motives, has still to prove itself acceptable among the engineering groups. Structural engineering, on the contrary, "belongs."
Since armed force has been the chief instrument for bringing these elements together, the agency responsible for exercising armed force enjoys priority in a listing of the structural institutions of civilization. Land owners, often acting as military chieftains, dominated the hinterland of a civilization. The city was dominated by businessmen.
Of the multitudinous speculations which, at various times, have been entertained respecting the origin and mode of formation of coal, several appear to be negatived, and put out of court, by the structural facts the significance of which I have endeavoured to explain. These facts, for example, do not permit us to suppose that coal is an accumulation of peaty matter, as some have held.
Inside, however, devastation had gone deep into the Middle. Bulkheads, walls, floors, structural members; were torn, sheared, twisted into weirdly-distorted shapes impossible to understand or explain.
This and other causes acted to place the Placentals in the "Royal line" from which Man was evolved. The following families of Placental Mammals are recognized by Science, each having its own structural peculiarities: The Edentata, or Toothless creatures, among which are the sloths, ant-eaters, armadillos, etc. These animals seem to be closer to the Monotremes than they are to the Marsupials;
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