203 



Scillitin. In the flesliy bulb of Urginia Scilla. Bruise the- 

 fresh bulbs, digest with water mixed with some sulphui-ic acid, 

 filter, saturate the filtrate with lime; evaporate, allow to stand 

 cold, remove the sulphate of lime, bring the liquid to dryness, 

 treat with strong alcohol and evaporate the tincture. — Small, 

 white, hard prisms, of a bitter, not acrid taste, insoluble in water 

 and in oils, soluble in 120 parts alcohol. 



Sc01)arili:=C42 H22 020- Yellow, crystalline pigment of 

 Cytisus scoparius. Boil the herb with water, evaporate the 

 decoction to a small bulk, leave to stand cold for a day, collect 

 the greenish-brown jelly on a cloth, wash with cold water, treat 

 with boiling alcohol, filter and evaporate slowly. — Small, light- 

 yellow crytals, inodoi'ous and tasteless, neutral, slowly soluble in 

 cold water and in alcohol, readily soluble in both when warm; 

 also easily dissoluble in the hydrates and carbonates of alkalies, 

 also in limewater and in solution of baryta, in concentrated acids. It 

 becomes dark green with solution of chloride of lime, is converted 

 into picric acid by niti'ic acid; is precipitable by acetate and 

 subacetate of lead. 



Sci'Opllllliirill. Bitter ingredient of Scroplmlaria aquatica, S. 

 nodosa, and allied species, obtained as yet only in the impure 

 state. 



Sebacic Acid = Stearic Acid. 



SeCaliU = TrIMETH YLAM IN. 



Seiie«iii= Saponin. 



8ericic Acid = Myristic Acid. 



Sericiii=MYRisTiN. 



[NiC01)irill=::C32 H12 Oio. G-lucosid, found by Peckolt in the 

 root-bark of Bowdichia virgilioides. Exhaust the powdered bark 

 with absolute ether, distil and treat the residue with cold alcohol of 

 32° B. ; dissolve the remaining crystalline mass in boiling alcohol 

 with a little animal charcoal, filter and allow to crystallise. — Con- 

 glomerated needles of bitter, slightly pungent taste, slightly alka- 

 line, soluble in ether and boiling alcohol, not in water, fusible to 

 a clear liquid, and burning away without residue.] 



Siliapoleic Acid^Css H35O3 + HO. The liquid fat-acid of 

 the oils of black and white mustard and of rape; is prepared like- 

 oleic acid. 



Slieabutter. Probably from Lucuma Parkii ; is greenish- 

 white, fuses at 43°, and consists of about 30% olein and of 70% 

 stearin. 



Silialbill = SlNAPIN-SuLPHOCYANIDE. 



