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A work or artificial watercourse for throwing water on lands that lie on the slopes of hills; a catchdrain.

closing subdivision of the Devonian age in America. The rocks of this period are well developed in the Catskill mountains, and extend south and west under the Carboniferous formation. See the Diagram under Geology.

A part of the amnion, one of the membranes enveloping the fetus, which sometimes is round the head of a child at its birth. It is deemed lucky to be with a caul or membrane over the face. This caul is esteemed an infallible preservative against drowning . . . According to Chysostom, the midwives frequently sold it for…

vegetable or animal, is a cell; the whole series of cells having been formed from the development of the germ cell and by differentiation converted into tissues and organs which, both in plants ans animals, are to be considered as a mass of minute cells communicating with each other. -- Cellular tissue. (a) (Anat.) Se…

A species of the Myriapoda; esp. the large, flattened, venomous kinds of the order Chilopoda, found in tropical climates. they are many-jointed, and have a great number of feet. [Written also centipede (

to designate a modified mass of protoplasm about a centrosome whether aster rays are developed or not.

lusca, including all except the bivalves; -- so called because the head is distinctly developed. See Illustration in Appendix.

Form or development of the skull; as, the races of man differ greatly in cephalism.

l structure; localization of important organs or parts in or near the head, in animal development. Dana.

ining form denoting the head, of the head, connected with the head; as, cephalosome, cephalopod.

two living species have been discovered in Australian rivers. They have lungs so well developed that they can leave the water and breathe in air. In Australia they are called salmon and baramunda. See Dipnoi, and Archipterygium.

A cerecloth used for the special purpose of enveloping a dead body when embalmed.

A small species of antelope (Rupicapra tragus), living on the loftiest mountain ridges of Europe, as the Alps, Pyrenees, etc. It possesses remarkable agility, and is a favorite object of chase.

an system in America, so named from the Chemung River, along which the rocks are well developed. It includes the Portage and Chemung groups or epochs. See the Diagram under Geology.

A hairlike envelope. The nucleus and chevelure of nebulous star. Sir. W. Hershel.

The Ingoat antelope (Tragops Bennettii) Of India.

A scientific study of children, undertaken for the purpose of discovering the laws of development of the body and the mind from birth to manhood.

A warm westerly wind from the country of the Chinooks, sometimes experienced on the slope of the Rocky Mountains, in Montana and the adjacent territory.

A plastid containing chlorophyll, developed only in cells exposed to the light. Chloroplasts are minute flattened granules, usually occurring in great numbers in the cytoplasm near the cell wall, and consist of a colorless ground substance saturated with chlorophyll pigments. Under light of varying intensity they exhib…

The development of cartilage.