282 GLOSSARY 



Carbon. A gas, C, existing in small quantities in the atmosphere ; 

 also in a solid form in charcoal and the diamond. 



Carbon dioxid. A gas, CO2; carbonic acid gas. 



Carnivorous. Feeding on flesh. 174. 



Casein. Milk curd, the chief albuminoid of milk. It is the main con- 

 stituent of cheese. 370. 



Catch-crop. A crop grown between plants of a regular crop, in the 

 interval of time between regular crops. 109. 



Cereal. A grain belonging to the grass family, as wheat, maize, rice, 

 oats, barley, rye. 



Chemistry. That science which treats of composition of matter. 18 



Chlorophyll. The green matter in plants. 198, 198. 



Cion. A part of a plant inserted in a plant, with the intention that it 

 shall grow. 236. 



Climatology. Knowledge and science of climate. It includes the 

 science of weather (local climate) or meteorology. 19. 



Coagulate. To curdle; as of milk. 



Cold frame. A glass-covered box or frame which is heated by the 

 sun, and in which plants are grown or kept. 



Coming true. Reproducing the variety. 215, 227. 



Comminute. To break up, fine, pulverize. 29a. 



Compost. Rotted organic matter. 34. 



Conservation. Saving. 82. 



Cover-crop. A catch-crop which is designed to cover the soil in fall, 

 winter and early spring. 109, 116. 



Cultivator. An implement which prepares the surface of the ground 

 by turning it or lifting it. The spring-tooth harrow is really a 

 cultivator 



Cutting. A part of a plant inserted in soil or other medium with the 

 intention that it shall grow and make another plant; slip. 231. 



Dehorning. Removing the horns from animals. 120. 



Dependent. Depending on other means than its own, as on the con- 

 ditions in which it lives. 182. 



Denude. To strip, to make bare, to wash away. 266. 



Dormant. Latent, sleeping, not active. 



Drought. A very dry spell or season. 



Ecology. The science which treats of the inter-relationships of ani- 

 mals and plants, and of their relations to their environments. 

 The study of the habits and modes of life of organisms. The 

 migrations of birds, distribution of plants, nesting habits of 

 bumble-bees, are subjects of ecology. Often spelled o?cology. 16a. 



