In fact the uniformity of brass and bell-metal is only superficial; if we adopt the methods described in the article Metallography, and if, after polishing a plane face on a bit of gun-metal, we etch away the surface layer and examine the new surface with a lens or a microscope, we find a complex pattern of at least two materials.
Some of them inhabit forests and others the more open country; but setting aside size (which in this group varies from that of a quail to that of a large common fowl) there is an unmistakable uniformity of appearance among them as a whole, so that almost anybody having seen one species of the group would always recognize another.
The system thus established proved to be very unsatisfactory, and a new school law in 1875 brought about a greater degree of uniformity and centralization through its provisions for the appointment of a state superintendent of free schools and a state board of education.
Metrical form is distinguished from prose by the uniformity of corresponding lines in relation to the number of syllables and the similarity of final sound (rhyme or assonance), by the repetition of certain letters at regular intervals (in alliterative measure), or merely by the regular succession of ups and downs of intonation.
More important still was the growing perception of the general uniformity of nature, which had forced itself with increasing insistence upon men's minds as the study of the natural sciences progressed in the 17th and 18th centuries.
The Presbyterianism now visible in England is of Scottish origin and Scottish type, and beyond the fact of embracing a few congregations which date from, or before, the Act of Uniformity and the Five Mile Act, has little in common with the Presbyterianism which was for a brief period by law established.
Many Graptolite zones, showing a constant uniformity of succession, paralleled in this respect only by the longer known Ammonite zones of the Jurassic, have been distinguished in Britain and northern Europe, each marked by a characteristic species.
They were built on a rectangular plan, with a large central square and straight thoroughfares running at right angles or parallel to one another, this uniformity of construction being well exemplified in the existing bastide of Monpazier (Dordogne) founded by the English in 1284.
By prearrangement, no doubt, uniformity may be obtained in regard to most of the main statistical facts ascertainable at a census, at all events in the more advanced units of the empire, and proposals to this effect were made by the registrar-general of England and Wales in his report upon the figures for 1901.
Other regulations prevailed in different countries, until the inconveniences arising from the want of uniformity led to the rule now observed being laid down under Pope Urban II.