302 GLOSSARY. 



CocWs-foot, orchard grass, a species of the genus Dactylis. 

 Cohesion, a force inherent in all the particles of bodies, by which they 



are prevented from falling to pieces. 

 Coleseed, rape seed. 

 Commons, uninclosed lands. 



Compact, firm, solid, closely connected and joined, or held together. 

 Complement, (of an arc or angle,) its difference from a quadrant, or 



ninety degrees, be it more, or less. 

 Composts, mixtures of various earthy and vegetable materials, as peat, 



earth, lime, dung, loam, &c. See p. 69. 

 Concentration, the act of increasing the specific gravity of bodies. 

 Coniferous, bearing cones, producing hard, dry, scaly seed-vessels, of 



a conical figure, as the pine, beech, fir, cypress, &c. 

 Convertible Husbandry, mixed husbandry, which implies frequent 



change, in the same field, from tillage to grass and from grass to 



tillage ; an alternation of dry, root, and grass, crops. 

 Corn, in Europe, embraces every crop that is coriAertible into bread, 



as wheat, barley, oats, &c. In the United States, the term is par- 

 ticularly applied to maize, or Indian corn. 

 Cornplanter, a machine to furrow out, drop the seed, cover, and roll 



down, at one operation, land in corn. 

 Co-sine, (in trigonometry,) the line drawn from the sine of an arc to 



the radius which is parallel to that sine. See Circle. 

 Cotyledons, seed-lobes, or seed-leaves, the fleshy parts of seeds, or 



the two halves, which separate in the act of sprouting, and rise 



above the ground. 

 Coulter, the front iron of a plough, which, with a sharp edge and 



slanting face, cuts and separates the ground. 

 Crested I>og^s-tail grass, a species of the genus Cynosurus. 

 Crop, the corn or other fruits of the earth ; any thing cut off, or gath- 

 ered. 

 To Crop, to pluck ; to mow ; to reap ; to yield harvest. 

 To Crop out. When the edges of the strata of rocks appear at the 



surface, they are said to crop out. 

 Cropped, reaped or mowed. 

 Cropping, the raising, cutting, and carrying off, the crop ; generally 



applied to tillage crops. 

 Cross-ploughing, turning furrows at right angles with other furrows. 

 Crown, the top ; the head ; an appendage to the top of a seed, which 



serves to bear it in the wind. 

 Cube, a body, having six equal sides, like dice. 

 Cubed, in mathematics, having the cube root extracted, or found. 

 Culinary Vegetables, such as are raised for the table. 

 Culm, the smooth, jointed stalk of grain and grass. 

 Culmiferous Crops consist of the grains and the grasses which have 



smcoth, jointed stalks, (culms,) and seed contained in chaffy husks, 



as wheat, timothy, &c. These have generally fibrous roots. 

 Cultivator, see p. 150. 

 Cut-and-cover, in ploughing, to make wide furrows, turning over the 



sod upon a part not ploughed, and covering it up 

 Cutting up, (corn,) cutting the stalks close to the surface of the ground 



