Appendix I 381 



Carbon Bisulphide. A chemical compound of carbon and sulphur. 



A heavy inflammable liquid used to kill insects in stored grain . 

 Carbohydrate. Compound of carbon with the elements oxygen and 



hydrogen in the same proportion that they occur in water. 



Examples are sugar, starch, wood fiber, etc. They form the 



largest part of plant substance. 

 Carnivorous. Feeding on flesh. 

 Casein. Milk curd, the most important albuminoid in milk and 



cheese. 

 Catch Crop. A crop grown during an interval between the harvest 



of regular crops. 

 Cellulose. The principal carbohydrate in wood fibers, such as cotton, 



flax, wood pulp. 

 Cereal. The name given to the grasses cultivated for their grain, 



as corn, wheat, kaffir corn. 

 Chemistry. The science that deals with the properties of the elements 



and their compounds. 

 Chlorophyll. The green coloring-matter to which plants owe their 



characteristic color. 

 Cion. See Scion. 

 Climatology. The knowledge and science of weather. It includes 



the science of weather (local climate) and meteorology. 

 Coming True. Reproducing the variety characters. 

 Compost. Rotted organic matter, plant or animal. 

 Concentrates. A term used to designate feeding substances that are 



almost wholly digestible, as corn, bran, mill products. 

 Contagious. A disease is said to be contagious when it may be 



transmitted from one individual to another. 

 Corolla. The second circle of leaf-like parts of a flower. The corolla 



is usually colored. 



Cotyledons. The primary or seed-leaves of an embryo plant. 

 Cover Crop. A catch-crop designed to cover the ground during the 



fall, winter or spring to prevent washing. 



Cross. The individual resulting from breeding two varieties together. 

 Cross-Pollination. The pollination of a flower by pollen from another 



plant. 



Croup (crop). The top of the hips. 

 Cutting, A part of a stem or root put into the soil or other 



medium with the intention that it shall grow and make 



another plant. 



