404 INDEX AND GLOSSARY. 



Amyhim, 132 (Gr. amuloa, starch). Starch. 



Amyloid. A vegetable substance analogous to starch, but 

 turning yellow in water after having been colored blue by 

 iodine. 



Amyloid Cell and Infiltration, 239. A waxy or lardaceous 

 albuminate infiltrated among the tissues. 



Analogy. Resemblance in form but not in function, or in 

 function but not in form. 



Analysis of urine, 300. 



Analytic Crystals, 90, 113. Crystals which analyze polarized 

 light, as tourmaline, nitrate of potass, boracic acid, uric acid, 

 iododisulphate of quinia. 



Anatomy of insects, 177. 



Angioma, 269 (Gr. angion, a vessel). Blood tumor. 



Anguillula, 171 (Lat. anguis, a snake). A genus of minute 

 animals, formerly classed among Infusoria, but now regarded 

 as nematoid Eutozoa. The " eels " in sour paste and vinegar 

 belong here. 



Angular Aperture, 25. The angle measured by the arc of 

 a circle, the centre of which is formed by the focal point of the 

 objective, the radii being formed by the most extreme lateral 

 rays which the object-glass admits. 



Anilin Staining- fluids, 69. Anilin Carmine, 69. Anilin 

 colors are of great interest in chemistry and microscopy. 

 Anilin is a base, forming salts with various acids, as hydro- 

 chlorate, nitrate, and oxalate of anilin. The substitution deri- 

 vatives of anilin are very complex and their colors various. 

 Mauvine forms a purple solution ; rosanilin, known also as 

 fuchsin, magenta, etc., a deep red; Hoffman's violet a rich 

 violet; anilin blues are numerous. There are also several ani- 

 lin greens, and chrysanilin dyes a golden yellow. 



Animal parasites, 330. 



Animalcule, 160. (A little animal.) Usually applied to In- 

 fusoria, Rotatoria, etc., but formerly given also to many of the 

 lower Algae. 



Animalcule cage, 41. 



Animal histology, 182. 



Annelidse, 337. A gallicized form of Annulata. 



Annulata, 172. Ringed worms. 



