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A peculiar structure found in the Archæan limestones of Canada and other regions. By some geologists it is believed to be a species of gigantic Foraminifera, but others consider it a concretion, without organic structure.

A structure which overlaps the mouth of certain insects.

A continuous and, usually, structureless layer which covers more or less of the exterior of many corals.

A palace and mausoleum of the kinds of Spain, being a vast and wonderful structure about twenty-five miles northwest of Madrid.

solvent. They have usually a definite form, and are important as revealing the molecular structure. -- Etching needle, a sharp-pointed steel instrument with which lines are drawn in the ground or varnish in etching. -- Etching stitch (Needlework), a stitch used outline embroidery.

ng to, or in the region of, the ethmoid bone. Ethmoid bone (Anat.), a bone of complicated structure through which the olfactory nerves pass out of the cranium and over which they are largely distributed.

self- nourishment of manifesting the nutritive acts by changes of form, of volume, or of structure. Syd. Soc. Lex.

tural law which involves continuous progress from the homogeneous to the heterogeneous in structure, and from the single and simple to the diverse and manifold in quality or function. The pocess is by some limited to organic beings; by others it is applied to the inorganic and the psychical. It is also applied to expla…

The structure of anything; the manner in which the parts of a thing are united; workmanship; texture; make; as cloth of a beautiful fabric.

Not essential or permanent, as parts of a structure which are temporary or supplemental.

upe of organisms, either animal or vegetable, related by certain points of resemblance in structure or development, more comprehensive than a genus, because it is usually based on fewer or less pronounced points of likeness. In zoölogy a family is less comprehesive than an order; in botany it is often considered the sa…

The make or form of anything; the style, shape, appearance, or mode of structure; pattern, model; as, the fashion of the ark, of a coat, of a house, of an altar, etc. ; workmanship; execution. The fashion of his countenance was altered. Luke ix. 29. I do not like the fashion of your garments. Shak.

The cast or structure of anything, or of any part of a thing, as of a landscape, a picture, a treaty, or an essay; any marked peculiarity or characteristic; as, one of the features of the landscape. And to her service bind each living creature Through secret understanding of their feature. Spenser.

An inclosure about a field or other space, or about any object; especially, an inclosing structure of wood, iron, or other material, intended to prevent intrusion from without or straying from within. Leaps o'er the fence with ease into the fold. Milton.

One of the openings in a fenestrated structure.

Unorganized or structureless ferments. The latter are also called soluble or chemical ferments, and enzymes. Ferments of the first class are as a rule simple microscopic vegetable organisms, and the fermentations which they engender are due to their growth and development; as, the acetic ferment, the butyric ferment, e…

eight across a river, bay, etc., charging tolls. Ferry bridge, a ferryboat adapted in its structure for the transfer of railroad trains across a river or bay. -- Ferry railway. See under Railway.

A kind of cartilage with a fibrous matrix and approaching fibrous connective tissue in structure. -- Fi`bro*car`ti*lag"i*nous, a.

A silicate of alumina, of fibrous or columnar structure. It is like andalusite in composition; -- called also sillimanite, and bucholizite.

Having the structure of a filoplume.