212 STATE BOARD OP AGRICULTURE 



Fission. — The conetriction of the cell wall in the process of multiplication. 



Flagella (singular flagellum).— Same as cilia. 



Fungus (plural fungi) — A low form of plant life free from green pigment (chlorophyll); 

 it obtains its substance from organic matter. 



Oilatin. — A jelly like substance obtained from animal tissues. 



Girm. — That from which vegetable or animal life develops. Is frequently used as'a 

 synonym of microbe. 



Oerminmtion. — The process of development which the germ undergoes. 



Hanging-drop. — A small drop of fluid in which bacteria are suspended for the study 

 of their natural condition. 



Homogeneous. — Uniform consistency throughout. 



Hydrogen. — A chemical element occupying an important place in organic chemistry. 



/ncM&aior.r-An apparatus for holding an even temperature during an inddfinite period. 



Maximum. — The highest. 



Medium. — A material for the cultivation of bacteria. 



Microbes (singular, microbe). — Same as bacteria. 



MierococeuH (plural, micrococci).— Spherical bacteria. 



Micro-organisms. — Same as bacteria. 



Micro-millemeter. — One twenty-five thousandth of an inch. 



Minimum. — The lowest. 



Morphology. — The study of form. 



Moulds. — A class of fungi. 



Nidus. — A nest or home. 



Nucleus. — A very dense and essential portion of a cell. 



Optimum. — Best. 



Oxygen. — A chemical element widely distributed through nature. 



Pastetirization. — The process of eliminating most bacteria. 



Parasitic. — Applied to those bacteria existing on living matter. 



Pathogenic. — Applied to those bacteria producing disease. 



Piptones. — Digested muscle fiber, 



P dri-dish. — A dish used for plating. 



Photogenic. — Applied to bacteria emitting light. 



Plate. — A piece of glass upon which solid media are spread for the isolation of differ- 

 ent species of bacteria. 



Platinum. — A white metal withstanding a high degree of heat. 



Proteid. — An albuminous substance. 



Protoplasm. — A semi-fluid, translucent material found in the body of all living cells. 



Real Motion. — Motion from place to place. 



Refringent. — Refractive, glistening. 



Saprogenic. — Applied to bacteria producing putrefaction. 



Saprophytic— Applied to bacteria living on dead matter. 



Sircine. — Micrococci grouped in cube-shaped masses. 



Spirillum (plural, spirilla). — Screw shaped micro-organisms. 



Sporadic. — Isolated. 



SpO"e.— Oval glistening body inside of the bacterial cell. 



Spore-wall. — The dense sheath covering the spore. 



Staphylococcus. — A species of micrococci arranged in grape-like clusters. 



Sterilizition. — The process of killing or removing all bacteria. 



