GUNBOAT 



154 



G YE ACANTHUS 



as the Parrot and Reed guns. 4. Breech 

 loaders: the projectile having a soft metal 

 coating larger than the bore, which is coin- 

 pressed by the gas: such as the Armstrong 

 and Prussian guns. The parts of a smooth 

 bored cast gun are: muzzle, chase, reinforces, 

 cascable, q.v. 



Gunboat. A small vessel adapted for the car- 

 riage and use of one or more guns. 



Gun-cotton. Ci2H 14 O73N 2 O 5 = Pyroxylin = 

 Trinitrocelhilose: cotton soaked in nitric acid, 

 washed with water, and dried: when ignited 

 is more explosive than gunpowder. 



Gun-metal. An alloy of 9 parts of copper with 

 1 part of tin. 



Gunnell, (gun'nel)=Butter fish: a fish belong- 

 ing to Mureenoidae. 



Gunpowder, A mechanical mixture of salt- 

 petre, charcoal, and sulphur, which, when 

 heated, ignites with explosive force. 



Gunter's, (gun'terz). G.'chain: a chain, usually 

 of 100 links, used in surveying and measur- 

 ing 66 ft. in length. G. Kne=Line of num- 

 bers on Slide rule. G. scale, on Slide rule. 



Gurgoyle, (ger'goil)=Gargoyle, q.v. 



Gurnard, (ger / nard)=Guruet=Trigla cuculus: 

 a fish belonging to 

 Loricati. 



Gutta - percha tree, 

 (gut'ta perch'a). [The 

 Malayan name.]=Ico- 

 sandra gutta : from 

 which is obtained a Gurnet . 



tough waterproof gum-substance called gutta 

 percha. 



Guttiferales, (gut-ti-fer-a'lez). [L. gutta, drop; 

 fero, I bear.] Resinous trees, forming a 

 division of Hypogynons Exogens. 



Guy Lussac's Law, (gi-15-saks'). [M. Guy Lus- 

 sac.] = Dalton's law: that all gases expand 

 equally with equal increase of temperature. 



Gymnadenia, Gim-na-de'ni-a). [Gk. gymnos, 

 naked; aden, gland.] A plant belonging to 

 Orchidaceaa. 



Gymnema, (jim-ne'ma). A plant belonging 

 to Asclepiadacese. G. lactiferum=Co\v plant; 

 with milky juice. 



Gymno, (jim'no). [Gk. gymnos, naked.] A 

 prefix implying nakedness. 



Gymnocarpous, (jim-no-kar'pus). [Gymno, 

 q.v. ; Gk. karpos, fruit.] Used of plants, 

 whose fruits have no floral envelope. 



Gymnocladus, ( jim-nok'la-dus). [Gymno, q.v.; 

 Gk. klados, branch.] Coffee tree=Stump 

 tree: an American tree belonging to Fabacefe. 



Gymnodactylus, (jim-no-dak'ti-lus). [Gymno, 

 q.v.; Gk. daktylos, toe.] A reptile, belonging 

 to Geckotidse. 



Gymnodontidae, (jim-no-don'ti-de). [Gymno, 

 q>v.; Gk. odous, too th.]= Globe fishes, q.v. : a 

 family of fishes belonging to Acanthopteri . 



Gymnogens, (jim'iio-jene). [Gymno, q.v.; Gk. 

 gennao, I produce.] Plants resembling club- 

 mosses but larger: intermediate between 

 flowering and flowerless plants. 



Gymnolaemata, ( jirn-no-le'ma-ta). [Gymno, 

 g.v.;Gk. laimos, throat.] A primary division 

 of Poly zoa, including animals having no cover 

 to the trullet. 



Gymnophiona, ( jim-no-f i'o-na). [Gymno, q.v. ; 

 Gk. ophis, snake. ]=Ophiomorpha: a division 

 of Amphibia, having elongated rounded bodies 

 without limbs or tail, including Csecilia, 

 Siphonops, &c. 



Gymnophthalmata, ( jim-nof-thal'nia-ta). 

 [Gymno, q.v.; Gk. ophtlialmos, eye.]=Craspe- 

 dote Medusae: a division of Hydrozoa, q.v. 

 v. Medusae. 



Gymnophthalmous, ( jim-nof-thal'mus). [Gym- 

 no, q.v.; Gk. ophthalmos, eye.]=Naked eyed. 

 v. Medusa;. 



Gymnops, ( jim'nops). [Gymno, q.v.; op.t, eye.] 

 Honey-eater: a sparrow-like bird, belonging 

 to Passeres, named from the head being 

 nearly bald. 



Gymnospermese, (jim-no-sper'me-f'). [Gymno, 

 q.v.; Gk. sperma, seed.] Brbngniart's term for 

 a division of Exogens, including pines and 

 cycads, the seeds of which are naked. 



Gymnosperms, ( jim'no-sperms). [Gymno, q. v. ; 

 Gk. sperma, seed.]=Gymnogens: flowering 

 plants having no ovary; include Cycaurc, 

 Coniferse, and Gnetaceae. 



Gymnotus, (jim-no'tus). [Gymno, q.v.; notos, 

 back.] A fish belonging to Murajnidsc. G. 

 eec<rict=Electriceel, about 6 ft. long, found 

 in S. America. 



Gynandria, ( jin-an'dri-a). [Gk. fji/ne, woman: 

 aner, man.] One of the classes in the Lin- 

 nsuan classification of plants,including plants 

 in which the stamens and pistil are consoli- 

 dated. 



Gynandrous, (jin-an'drus). [Gk. gync, wo- 

 man; aner, man.] Having the stamens, style, 

 and stigma all consolidated ; a sub-division 

 of Monocotyledons. 



Gyno- (jin'o). [Gk. gync, woman.] A prefix 

 implying female. 



Gynoeceum, (jin-G'si'um). [Gk. g?me, woman; 

 oikos, house.] The whole of the female organ 

 of a plant. 



Gypaotos, (gi-pu'e-tos). [Gk. gyps, vulture; 

 (etos, eagle.] A large bird of prey, belonging 

 toVulturida?. G-barbctetos=bon.inl&l vulture, 

 I Gypogeranus, ( gi-po-jer'a-nus. ) [Gk. gyps, 

 vulture.] A vulture-like bird. G. serpen- 

 tarius=SticietM-y bird. 



Gyps, ( gips ). [The Greek name.] A bird of 

 prey, belonging to Vulturida?. G. Benria- 

 ?e*!si3=Bengal vulture. (7. /w^vus^Gritl'on 

 vulture. 



Gypsey, ( gip'si ) A Yorkshire name for a 

 rivulet. 



Gypsies, (jip'siz). [Gipsy, q.v.] v. Gipsies. 



'Sea (r.=Badjo\vs=:a tribe of Borneo. 



Gypsocallis, (jip-so-kal'iis). [Gk. gypsos, lime; 

 kaltistore, beautiful. ]=Moor-heath, q.v. 



Gypsum, (jip'sum). [The Latin word. ]=Plaster 

 of Paris=a variety of sulphate of lime which 

 soldifies when mixed with water : used in 

 modelling, as a manure, and in building. 

 Ciijstallised G.=Selenite. G. group of 

 minerals, includes gypsum, selenite, alabas- 

 ter, anhydrite, &c. 



Gypsy=Gipsy, q.v. G. wor^Lycopus. 



Gyracanthus, ( jl-ra-kan'thus ). [Gk. gyros, 

 circle; akanthn, spine.] A fish, known by 

 fossil remains found in Coal Measures. 



