CHAPTER XXII. 



Glossary. 



Acclimation. The spontaneous or natural process of becoming, 

 or the state or condition of being, inured or habituated to 

 a climate at first injurious. 



Acclimatization. The act of man in inuring or habituating to a 

 climate at first injurious, or the state or condition of being 

 thus inured or habituated by man. 



Adventive. Said of foreign plants which grow spontaneously, 

 but which are not thoroughly established. 



Agriculture. The art and science of cultivating land and raising 

 crops and stock. The term is often restricted to include only 

 the cultivation of grains and forage-plants and the rearing of 

 domestic animals, with the operations and studies incident 

 thereto. 



Alburnum. Sap-wood. 



Ammonia. A pungent gas, composed of one atom of nitrogen to 

 three of hydrogen. 



Annual {Adj.) Living for one year only. 



Arm. In grape-culture, a vine-branch more than a year old. 



Assimilation. In botany, the production of organic matter 

 from inorganic matter. 



Bacterium (pi. bacteria). As popularly used, the term is applied 

 to an extensive class of microscopic organisms, usually classed 

 with plants. The term microbe is used in the same sense. 



Basin. In descriptions of apples and related fruits, the depres- 

 sion at the apex of the fruit. The calyx sits in the basin. 



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