GLOSSARY. 443 



Dis in te-gra'tion. Crumbling to fragments. 



E-mul'si-fy. To reduce an oily substance to a milky fluid, in 

 which the fat globules are in a very finely divided state. 



En'to-mol'o-gy. The science which deals with the life history 

 and description of insects. 



Er-ro'ne-ous-ly. By mistake; not rightly. 



Ex'cre-ment. That which is discharged from the animal body 

 as useless. Ex-cre'ta. 



Fil'ter=pa-per. A porous unsized paper that retains the sedi- 

 ment when liquids are passed through it. 



Fun'gi-cide. A preparation which kills fungi. 



Fun'gus (pi. fun'gi). A flowerless plant lacking chlorophyll 

 (green coloring-matter). 



Green ma-nur'ing. Vegetation plowed under for fertilizing pur- 

 poses. 



Hu'mic. Pertaining to or derived from vegetable mold. 



Hu'mous, adj. Containing humus. 



Humus, n. Decayed vegetable or animal matter. 



Hy-dra'tion. Combining with water to form a hydrate, which is 

 usually a neutral salt. Slaked lime is a hydrate. 



In-oc'u-late. To communicate bacteria germs by introducing 

 matter infected by them. 



In-sec'ti-cide. A preparation to kill insects. 



La'bel. To apply a label to, to mark with a name, etc. 



Li'chen. Algx and fungi leading a life in partnership. 



Marl. A mixed earthy substance consisting of carbonate of lime, 

 clay, and siliceous sand in variable proportions. 



Me di-an. An ideal line dividing the body of an animal longi- 

 tudinally and symmetrically into right and left halves. 



Mi'cro=or-gan-ism. Microscopic organism, here meaning bac- 

 teria. 



Mo-lec'u-lar force. Attraction between molecules. 



Muck. Decayed vegetable matter. 



Nod'ule. Small rounded masses, knots, or prominences formed 

 on roots of leguminous plants by infesting bacteria. 



Note. Used in connection with exercises and experiments, means 

 observe and record your observation. 



Nox'ious. Injurious; destructive. 



Ox'i-da'tion. Combining with oxygen to form an oxide. 



Par'a-sit'ic. Living upon or in, or deriving its nourishment from 

 some other living being. 



