ALLYL 



ALTAIR 



The isolated radical of a series 

 of organic compounds, having the same com- 

 position as glycerin, from which the allyl 

 compounds are usually derived. 



Allyl series. Allyl alcohol; A. ether; A. 

 sulphide, <fcc. 



Allylia, (al-im-a). [Allyl, g.v.]=C 3 H 7 N: a 

 volatile alkaline base, belonging to the Allyl 

 series. 



Allylic ether, (al-111'ik). [Allyl, ?.v.]-Allyl 

 oxide = allyl ether = (C 3 H 5 >>O, an ethereal 

 liquid. 



Allylic series. [Allyl, g.w.]=: Allyl series: a 

 class of chemical compounds containing the 

 radical allyl. 



Almaac, (al'mak). [The Arabic name.] = 

 y Andromedaa : a star in the constellation 

 Andromeda. 



Almacantar, (al-ma-kan'tar). A circle parallel 

 to the horizon. 



Almaden process, (al-ma'den). [Almaden, a 

 town in Spain.] The process of obtaining 

 mercury by sublimation in use at the mines 

 of Almaden. 



Almanac, (al'ma-nak). Ar. al, the; manak, 

 to reckon.] A list of astronomical occur- 

 rences, as succession of days, changes of 

 moon, eclipses, etc. 



Almandine, (al'tnan-din). [Alabanda, a town 

 in Karia.] A variety of spinel, ruby, &c., 

 of a violet colour: a silicate of alumina and 

 magnesia, coloured by oxide of iron, com- 

 monly called garnet; first used at Alabanda. 



Almond tree, (a'mond). [F. amande, almond.] 

 =Amygdalus communis; a tree common in 

 warm climates, having edible nuts, belong- 

 ing to Drupaceae. 



Almond oil, (a'mond). From kernel of Amyg- 

 dalus communis. 



Almond-worts, (a'mund-wurtz). [Almond, 

 q.v.; A.-S. wyrt, plant. ]=Drupace89, q.v. 



Alnilam, (al-ni'lam). [The Arabic name.]= 

 i Orionis: a star in the constellation Orion; 

 in the centre of the belt. 



Alnitak, (al-ni'tak). [The Arabic name.]= 

 Orionis: a star in the constellation Orion; 

 at the eastern end of the belt. 



Alnus, (al'nus). [L. alnus, alder. ]= Alder: 

 trees or shrubs resembling the birch, com- 

 mon in northern temperate countries, be- 

 longing to Betulaceaa. 



Aloe, (al'o). [Aloe, the Greek name.] An ever- 

 green shrub or tree, belonging to Liliacese. 

 The American aloe is the Agave Americana, 



Aloe'retinio acid, (al-o-re-tin'ik). [L. a loe, aloe. ] 

 A bitter acid obtained from the aloe plant. 



Aloes- wood. Fragrant and resinous timber. 

 1. Inner wood of Aquilaria ovata. 2. Wood 

 of Aloexylon agallochum. 



Aloes, (al'oz). [Aloo, q.v.] A bitter drug 

 prepared from the aloe plant. 



Aloetic acid, ( al-o-et'ik ). [Aloes, q.v.] = 

 C 8 H 5 N 2 O 7 : a bitter resin-like acid sub- 

 stance obtained from aloes. 



Aloin, (al-o'in). [L. aloe, aloe plant.] A bitter 

 crystalline principle, found in the aloe plants, 

 forming the chief ingredient of the aloe drug 



Alpaca. 



Alonsine Tables=:Alphonsine Tables, q.v. 

 Alopecidaa, (al-o-pes'i-de). [Gk. alopex, fox.] 



=Fox shark, q.v. 

 Alopecurus, ( al-o-pe-ktt'rua ). [Gk. alopex, 



fox; oura, tail.]=Fox-tail grass: a common 



grass, having its flowers in thick heads. 

 Alosa, (al-o'sa)=Shad : a fish of the herring 



kind. 



Alouettes, (a-15-etts)=Howling monkeys, q.v. 

 Aloysia, (al-oi'si-a). A genus of plants, be- 



longing to Verbenaceae, of which the sweet- 



scented vervain is an example. 

 Alpaca, (al-pak'a). [Paka, native name.] 1. 



A South Ameri- 



can animal, of tha 



camel kind, hav- 



ing very long and 



flue hair ; some- 



times called Peru- 



vian sheep. 2. A 



textile fabric made 



from its hair, 



much used in : 



manufactures. 

 Alpetragius, (al-pe-- 



tra'ji-us). A plain 



in the moon, q.v. 

 Alpha, (al'fa). [Gk. alpha, first letter of the 



alphabet.] Used to designate the brightest 



star in a constellation: thus, a Lyrse, a Ursso 



Minoris, &c. 

 Alphard, (al'fard). [The Arabic name.] = 



a Hydree: the chief star in the constellation 



Hydra. 

 Alphecca, (al-fek'ka). [The Arabic name.] 



=Gemma=a Coronas borealis: the chief star 



in the constellation Northern Crown. 

 Alpherat, (al'fer-at). [The Arabic name.]=a 



Andromedse: a star of the first magnitude, the 



chief star of the constellation Andromeda. 

 Alphirk, (al'firk). [The Arabic name.]=j3 



Cephei: a star in the constellation Cepheus. 

 Alphonsine Tables, (al-fon'sin). A collection 



of astronomical facts and tables made in 



the reign of Alonzo X. of Arragon. 

 Alphonsus, ( al-fon'sus ). A plain in the 



moon, q.v. 

 Alpine warbler. A small bird, belonging to the 



genus Accentor, also called Motaciila alpina. 

 Alpinia, (al-pi'ni-a). [Alpine, mountainous.] 



1. A sub-genus of Renealmia, including the 



Galangule. 2. A genus of Zingiberacesu, 



consisting of Alpine plants. 

 Alpiniaceae (Lk.), (al-pin-i-a'se-e). [Alpinia, 



9.v.]=ZingiberaceoQ, q.v. 

 Alshain, (al-shun'). [The Arabic name.]=|3 



Aquilaa: a star in the constellation 

 Alsinaceae, (al-sin-a'se-e). [Alsineoa, 



Caryophyllaceso, q.v. 

 Alsineae, (al-sin'e-e). [Gk. alsos, sacred grove.] 



=Clove-worts=Caryophyllacese, q.v. 

 Altaic mongolidae, ( al-ta'ik moii-gol'i-de ). 



[Altaic mountains.] Divided into Seriform 



and Turanian gi-oups. Seriform Chinese, 



Siamese, Burmese, etc. Turanian = Mon- 



golian, Turk, etc. 

 Altair, ( al'tar ). [ The Arabic name. ]=a 



Aquilre: a star of the first magnitude; chief 



in the constellation Aquila,. 



