GLOSSARY. 



Albuminoids. — Substances rich in albumen, like the 

 white of an Ggg which is nearly pure albumen. 



Anaerobic. — Living without free oxygen. 



Calibrating. — Determining the caliber of the neck of a 

 test bottle in order to ascertain the accuracy of the 

 scale upon it. 



Carbohydrates. — Substances like starch and sugar. 



Centrifugal Force. — That force by which a body mov- 

 ing in a curve tends to fly off from the axis of motion. 



Chemical Composition. — This refers to the elements or 

 substances of which a body is composed. 



Colloidal. — Resembling glue or jelly. 



Concussion. — The act of shaking or agitating. 



Constituents. — The components or elements of a sub- 

 stance. 



Dead Center. — That position of the engine when the 

 crank arm and the piston rod are in a straight line. 



Dividers. — An instrument used in reading tests. 



Emulsion. — A mixture of oil (fat) and water contain- 

 ing sugar or some mucilaginous substance. 



Enzymes. — Unorganized ferments, or ferments that do 

 not possess life. 



Fibrin. — A substance which at ordinary temperatures 

 forms a fine network through milk which impedes 

 the rising of the fat globules. 



Foremilk. — The first few streams of milk drawn from 

 each teat. 



Galactase. — An unorganized ferment in milk which di- 

 gests casein. 



352 



