CHAPTER XXIII. 



GLOSSARY. 



Acclimation. The spontaneous or natural process of be- 

 coming, or the state or condition of being, inured or habit- 

 uated to climate at first injurious. 



Acclimatization. The act of man in inuring or habituat- 

 ing to a climate at first injurious, or the state or condition 

 of being thus inured or habituated by man. 



A.dventive. Said of foreign plants wiiich grow spontane- 

 ously, 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 

 arid studies incident thereto. 



Alburnum. Sap-wood. 



Ammonia. A pungent gas, composed of an atom of ni- 

 trogen to three of hydrogen. 



Annual (adj.). Living for one year only. 



Arm. In grape culture, a vine branch over a year old. 



Assimilation. In botany, the production of organic mat- 

 ters from inorganic matters. 



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 

 depression at the apex of the fruit. The calyx sits in the 

 basin. 



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