APPENDIX I 



GLOSSARY 



Abdomen. That part of an animal's body containing the digestive 



organs; the part of an insect lying behind the thorax. 

 Acid. A sour substance, such as vinegar, lemon juice, etc. 

 ^Esthetic. Appealing to the faculties of taste, as in form, color, etc. 

 Agriculture. Farming. 



Agronomy. Pertaining to or about field crops. 

 Air-dry. Dried in air at ordinary temperatures. 

 Albumin. A substance found in plants and animals, rich in nitrogen. 



The white of an egg is a good example. 



Alga. A green plant of simple structure, such as pond scum. 

 Ameliorate. To improve; make better. 

 Amendment. Substances which improve the productiveness of soils 



without being used directly as plant foods. 

 Ammonia. A compound containing nitrogen readily converted into 



plant food. 



Animal Husbandry. Raising and caring for animals. 

 Annual. A plant that bears seed during the first year of its existence 



and then dies. 



Anther. The part of a stamen that bears the pollen. 

 Antiseptic. Substances which kill germs or microbes. 

 Art. The skillful and systematic arrangement or adaptation of 



means for the attainment of some end. 

 Ash. The mineral substance left when plant or animal substances 



are burned. 

 Assimilation. The absorption of digested nutrients into the body 



substance. Also sometimes used as synonymous with carbon 



assimilation. 



Atmospheric Nitrogen. Free nitrogen of the air. 

 Available. Said of fertilizing mineral nutrients in the soil when they 



are in a condition to be absorbed and used by plants. 

 Axils. Angle above the junction of a leaf-stalk with the parent stem. 

 Babcock Tester. Instrument used for determining the amount of 



butter-fat in milk. 



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