SUID.E 



317 



SWEAT 



Glucose= Dextrose: from fruit, starch, &c. 



Honey S.: resembles manna. Maple S.: from 



acer saccharinum. Milk S.=Lactose. 



=Celtis occidenta- 



lis. S. ca/ie Sac- 



charum officinarum. 



S. lice = Lepisma. 



. of lea<l=Norm&l 



plumbic acetate. S. 



of milk = Lactin= 



found only in milk. 



S. squirrel = Pet- 



aurus sciureus. 

 Suidse,(so'i-de). [Sua, 



q.v. ; Gk. eidos, Sugar-cane. 



form.] A family of Pachyderrnata, including 



all the varieties of Swine. 

 Sula, (sil'la). [The Latin name.] A bird be- 



longing to PelecanidJC. S. aZ6a=Solan goose. 

 Bulphacetic acid, (sul-fa-8S'tik)=C 2 H 4 O : >SO;j: 



a ci v.stalline dibasic acid. 

 Sulphate, (sul'fat). [Sulphur, q.v.] A com- 



pound of sulphuric acid with a base. S. of 



cnpper=l&lne vitriol. 

 Sulphate of mercury battery = Marie Davy 



battery, q.v. 

 Sulphide, (sul'fid). [Sulphur, <?.v.]=Sulphuret: 



a compound of sulphur with a metal, usually 



solid. S. of lead. l.=PbS=Protosulphide 



=Galena. 2.=P1>2S = Subsulphide = Lead 



matt. 

 Sulphocyanogen=: SCy : a sulphide of cyanogen ; 



a compound radicle. 

 Sulpho-salts. Compounds resembling oxysalts, 



but with the oxygen replaced by sulphur. 

 Sulphur, (sulfer). [The Latin word. J=S V : a 



highly inflammable brittle mineral sub- 



stance; one of the constituents of gunpowder; 



usually found near volcanoes. Flowers of 



.=SublimedS. Stick &=Brimstone. S. 



fl/co/to=Mercaptan=:Sulph-hydrate of ethyl; 



a white fluid, the vapour of which produces 



dreaminess and a sense of fatigue. S. group: 



sulphur, selenium, and tellurium; all hav- 



ing a strong attraction for oxygen. S.-icort: 



Peucedanuni officinale. 

 Sulphuretted, (sul-fu-ret'ed). [Sulphur, q.v.] 



Impregnated with sulphur: containing sul- 



phur as a constituent. S. hydroyen=.Hydi:o- 



sulphuric acid, q.v. 

 Sulphuric, (sul-fu'rik). [Sulphur, q.v.] S. 



acid = H 2 SC>4 = Dihydric sulphate=Oil of 



Titriol: an oily, colourless, caustic liquid, 



with a great attraction for water, and much 



used in manufactures. S. ether=\ 



=Diethyl sulphate: an oily liquid, obtaim 

 by combining sulphuric anhydride and ether. 



Sulphurous acid, (sul'fu-rus). [Sulphur, q.v.] 

 S0 2 : a colourless suffocating gas, having 

 strong bleaching properties; now called Sul- 

 phurous anhydride. 



Sumach, (su'mak). [Sumac, the French name.] 

 =Rhus: a N. American plant, having a 

 milky juice, with strong medicinal proper- 

 ties, from which tannic acid is obtained. 



Summer, v. Seasons. 



Sun, (sun), [tiunne, the A.-S. word.] The 

 centre of the solar system: 91 millions of 



miles distant from the earth; having a dia- 

 meter of 850,000 miles; considered as one of 

 the stars, the Sun is a variable star, with a 

 period of 14 years. Mean S.: an imaginary 

 sun, whose motion through the heavens is 

 at a uniform rate. S. &trcis=Proineropid3e. 

 S. fish = Orthagoriscus: 

 named from its globu- 

 lar form. S. ftowei' 

 Helianthus. S. spots : 

 hollows in the photo- 

 sphere of the sun. S. 

 stars: very distant; 

 such as Capella, Arc- 

 turns, Sirius, &c., v. 

 Stars. S. stone: a beau- 

 tiful variety of felspar. 



Sun and planet wheels. Sunflsh. 



Two wheels of different sizes, the smaller of 

 which travels round the circumference of the 

 larger. 



Sundews =Droseracefe, q.v. 



Superncies^su-per-fibh'i-ez). [The Latin word.] 

 Surface. 



Supination, (su-pin-a'shun). [L. supinus, bent 

 back.] Generally: lying with the face up- 

 wards; of the hand, with the palm upwards. 



Supplemental. -S. air: which remains in the 

 chest, in addition to the residual air, and 

 can be expelled only by an extraordinary 

 effort=about 80 cubic inches. S. triangle.- 

 a spherical triangle, formed by joining the 

 poles of three great circles; also called Polar 

 triangle. 



Supra-occipital, ( sil-pra-oks-sip'i-tal ). [L. 

 supra, above; occiput, back of head.] Above 

 the occiput. S. bone: the uppermost bone 

 of the first cranial segment. 



Surd, (serd). [L. surdug, indistinct.] A 

 number which cannot be exactly determined. 



Surf-duck, Oidemia perspicillata. 



Surveying, (ser-va'ing). The determination 

 of the form and extent of any portion of the 

 earth's surface. Trigonometrical S.: in which 

 the calculations are made by dividing the 

 given surface into triangles. 



Sus,(sus). [The Latin name.]=Hog. v. Suidae; 

 the female of s\is=Sow. 



Suture, (su'tur). [L. siitura, seam.] 1. The 

 union of two pieces of 

 bone. 2. The sowing 

 together of two edges of' 

 a wound. 



Swallow, (swol'lo). [Swa- 

 leioe, the A.-S. name.]' 

 =Hirundo, q.v. S. 

 hawk : a variety of the 

 hawk. Sea su-allou-= 

 Tern. S.-worts=A&cle- 

 pias. 



Swan=Cygnus, q.v, 



Swash-plate. A plate set 

 obliquely on a spindle, 

 and by its revolution 

 moving a sliding bar to 

 and fro. 



Sweat, (swet). [Swat, the 

 A.-S. word.] = Perspira- 

 tion, q.v. 



Swan. 



