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An instrument for examining the dichroism of crystals.

Pertaining to the dichroscope, or to observations with it.

A fossil track resembling that of a bird. Hitchcock.

The fossil track of a saurian.

A subordinate, or inferior, division into parts; a subdivision. [R.] Many subdichatomies of petty schisms. Milton.

The bark of several trees, esp. of Bowdichia virgilioides of Brazil, used as a remedy for consumption; of Byrsonima crassifolia, used in tanning; of Alchornea latifolia, used medicinally; or of Quercus ilex, the cork tree.

isting of two atoms of chlorine with one or more atoms of another element; -- called also dichloride. Bichloride of mercury, mercuric chloride; -- sometimes called corrosive sublimate.

of chromic acid to one of the other ingredients; as, potassium bichromate; -- called also dichromate.

United States (Callinectes hastatus). -- Blue curls (Bot.), a common plant (Trichostema dichotomum), resembling pennyroyal, and hence called also bastard pennyroyal. -- Blue devils, apparitions supposed to be seen by persons suffering with delirium tremens; hence, very low spirits. "Can Gumbo shut the hall door upon…

A large, long-legged South American bird (Dicholophus cristatus) which preys upon snakes, etc. See Seriema.

A dich or drain along the side of a hill to catch the surface water; also, a ditch at the side of a canal to catch the surplus water.

ion of organic substance into more simple bodies, by the use of chemical agents alone. Thudichum.

ive, or the next to its highest; as, chloric acid, HClO3. Chloric ether (Chem.), ethylene dichloride. See Dutch liquid, under Dutch.

ess of making such prints. According to one method, the film is sensitized with potassium dichromate and exposed to light under a reversed negative. After the dichromate has been washed out, the film is soaked in glycerin and water. As this treatment causes swelling in those parts of the film which have been acted on b…

oduced by various trees found in the Malayan archipelago, especially by the Isonandra, or Dichopsis, Gutta. It becomes soft, and unpressible at the tamperature of boiling water, and, on cooling, retains its new shape. It dissolves in oils and ethers, but not in water. In many of its properties it resembles caoutchouc,…

and to have the power of freeing carbonic acid from the sodium carbonate of the serum. Thudichum.

sia, having a bright blue color and vitreous luster; cordierite. It is remarkable for its dichroism, and is also called dichroite.

One of a group of nitrogenous phosphorized principles, supposed by Thudichum to exist in brain tissue.

A crystalline nitrogenous substance having a splendid dichroism, being green by reflected light and garnet-red by transmitted light. It was formerly used in dyeing calico, and was obtained in a large quantities from guano. Formerly called also ammonium purpurate.

erty of ideas. Poverty grass (Bot.), a name given to several slender grasses (as Aristida dichotoma, and Danthonia spicata) which often spring up on old and worn-out fields.