GRACTTLA 



150 



GRASS 



Small vesicles, found in the human ovary, 

 containing the ova. 



Gracula, (grak'u-la). [The Latin name. ]= 

 Grakle-bird: a crow-like bird. 



Graculinse, (gra-ka'li-ne). [Gracula, q.v.] A 

 division of Corvidse : a family of birds, of 

 which Gracula is the type. 



Gradient, (gra'di-ent). fL. gradus, step.] An 

 inclined plane, especially of a road. Ruling 

 G. : the gradient adapted to any given road, 

 or kind of road. Telford's RG.=^, i.e., 

 rising 1 ft. in 30 ft. 



Graduation , (grad-Q-a'shun. ) [L. gradus, step. ] 

 Division into degrees. 



Grahamite, (graliam-it). [Mr. Graham.] A 

 mineral resembling coal; a variety of asphalt, 

 found in Virginia. 



Graining, ( gra'ning ). =Leuciscus : a fish , be- 

 longing to Cyprinidse. 



Grains of paradise=The seeds of Amomum 

 grana-paradisi. 



Graklea, (gra'klz). =Quiscalina;, q.v. : a family 

 of birds resembling the starling ; also called 

 Boat-tails, from shape of the tails. 



Grallse, ( gral'lo ). [ L. rirallfc, stilts. ] = 

 GraHatores: an order of birds, by Milne- 

 Edwards. 



Grallator, (gral-la'tor). [L. grallator, one on 

 stilts.] A group of birds, remarkable for 

 length of stride and slenderness of toes, 

 known only by fossil footmarks, v. Pachy- 

 dactylous Lithichnozoa. 



Grallatores, ( gral-la-to'rez ). [Plural of pral- 

 lator.] Crane, plover, coot, snipe, &c. Wad- 

 iiig birds : having long legs, building their 

 nests on the ground, on banks and shores. 



Gramina, (gram'i-ua). [The Latin name.] 

 Grasses=Graminaceae, q.v. 



Graminacese, ( gram-in-a'se-o ). [ Gramina, 

 <7.v.]=Gras8e3 : evergreen plants, with cylin- 



' drical jointed stems, sheathing leaves, and 

 green flowers in spikes, belonging to Glu- 

 ruales. 



Gramme, (gram). [The French word.]=Tho 

 weight, in vacuo, of one cubic centimetre of 

 water at its great density, 4" C.=15$ grains 

 nearly; the unit of weight in the Metric 

 system. 



Grammepus, (gram-6'pns). [Gk. gramma,Iine: 

 pous, foot.] An invertebrate animal, known 

 only by fossil tracks, belonging probably to 

 Crustacean Lithichnozoa. 



Grampus, (gram'pus). [Corruption of French , 

 grand poisson, large 

 fish.] An animal, 

 belonging to Ceta- -i| 

 ceae, resembling the 

 dolphin. 



Granite, ( gran'it ). 

 [Granit, the French Grampus, 



word.] A rock of igneous origin .formed under 

 great pressure ; melted and slowly crystal- 

 lised ; differs from volcanic rock in being 

 more crystalline and having no breccias ; 

 composed of quartz, felspar, and mica ; one 

 of the Plutonic rocks. Foliated C?.=Gneiss. 

 Graphic Gr.=Prismatic veins, with but little 

 mica. Protogine G. with the mica replaced 



by talc. Syenitic G. =with the mica partially 



replaced by hornblende, approximates to 



Syenite. 



Granules, (gran'ulz). [L. (jranulus, littlo 

 grain.] Small grains. G. of Lannlni: 

 minute bodies present over the whole 

 solar surface; the immediate sources of 

 solar light and heat. G. of Hugfjins= 

 Groups of Langley's granules. 



Granuiite. (gran'u-lit). [Granito, q.v.] A 

 mineral, chiefly felspar, quartz, and garnet: 

 gneiss in which mica is replaced by garnet. 



Grape, (grap). [F. grappe, a branch of grapes.] 

 The fruit of the vine. G. /ivacint/t=Musc;iri : 

 a plant belonging to Liliacene. G. shot : a 

 number of shot arranged so as to be fired as 

 one. but dispersed after discharge. G. sugar: 

 GfiHioO<5+HoOz=Starch sugar: a variety of 

 sugar'obtained from fruit, especially grapes, 

 and from starch; also called glucose and dex- 

 trose, v. Suirar. G. rine=Yitis: a plant 

 belonging to Vitaceae. 



Graphic, (grafik). [Graphicus, the Latin 

 word.] Descriptive. G. formula: in che- 

 mistry, showing the combining equivalent 

 of the elements in a substance by means of 

 symbols, the supposed connection of the 

 atoms being represented by lines uniting 

 the symbols. G. acid=C^H4,O 5 ; obtained 

 by oxidation of graphite. G. representation: 

 by means of lines or diagrams. G. tellurium 

 Svlvanite. 



Graphidacese, (graf-i-da'se-e). [Graphis, tho 

 typical genus.] Letter-lichens: a division 

 of lichens, named from the fructifying por- 

 tions resembling written characters. 



Graphite, (grafit). [Gk. yrapho, I write.] 

 =Plumbapo=131uck-k-ad: a native form of 

 carbon. G. battery: a variety of galvanic 

 battery, consisting of zinc and carbon in 

 sulphuric acid. 



Graphon, (grafon). [Graphite, g.v.]=Gr= 

 an allotropic form of graphite. 



Graphotype, (graf o-tip). [Gk. grapho, I write ; 

 t?/pos, type.] A method of engraving by 

 drawing in ink upon a chalk surface, and 

 removing the chalk between the lines of 

 the drawing, so that it stands out in relief, 

 and can be copied in stereotype. 



Grapsoidae, ( grap-soi'de ). [ Grupsus ; Gk. 

 eidos, form.]=Grapsid8e: crab-like animals, 

 belonging to Brachyura, can open the bran- 

 chial cavity in front or behind, to breathe 

 water or air, so forming a link between 

 aquatic and terrestial respiration. 



Graptolites, ( grap-to-li'tez ). [Gk. graptos, 

 written; lithos, stone. ]=Graptolithus: ex- 

 clusive and characteristic Silurian fossils : 

 animals belonging to Hydrozoa. Double G. 

 =Diplograpsus and Didymograpsus. Twin 

 G. =Didymograpsus. 



Grass, (gras). [Gras, the A.-S. name.] An 

 herb, usually slender, belonging to Gra- 

 minacese. Beard G. ^Polypogon. Cat's tail 

 G. = Phlenm. Fox tail G. = Alopecurus. 

 Holy G =Hierochloe. Manna G. =Glyceria. 

 Marrem (?.=Psamma. Meadow G ! .=Poa. 

 Quaking G.=Briza. Rye G.=lMlinm. Ver- 

 nal <?.=Anthoxanthun. G. cloth : a textile 



