II. RESEARCH. 



607 



Selenate of copper CuSe0 4 + 5H 2 O. 

 Sulphate of copper-oxyde-ammonia 



3 2 . 



Arsenious acid crystallised from hot 



hydrochloric acid. 

 Iodide of arsenic, subl. As 2 T 3 . 

 Iodide of antimony, subl. SbI 3 . 

 Fused vanadic acid V 2 O 5 . 

 Acid vanadate of sodium 



Na 2 V 4 O n + 9H 2 O. 

 Acid vanadate of ammonium 



(NH 4 )2V 4 O n +4H 2 0. 

 Molybdic acid, subl. MoO 3 . 

 Titaniumsesquichloride Ti 2 Cl 6 . 

 Acetate of calcium and copper 



(C 2 H 3 2 ) 2 Ca1 

 (C 2 H 3 2 ) 2 CuJ 

 Sulphocarbonate of potassium 



5H.O 



cs< 



Sulphocarbonate of sodium 



SK 

 SK 



CS< 



Xanthogenate of sodium 



SNa 

 SNa 



Xanthogenate of potassium 



Hippuric acid CH 2 



Carbonate of guanidine 



CH 5 N 3 H 2 CO a . 

 Levulinate of calcium 



(C 5 H 7 3 )2Ca + 2H 2 0. 

 Nitrate of cy tisine. 

 Lithofellinic acid C 20 H 36 O 4 . 



Phthalic anhydride C 6 H 4 j j^O. 

 Stilb e ne, P ure{-CcH, 



Stilbene, common j ~C 6 H 5 . 

 L vf* ^ft**i' 



Triphenylbenzene C 6 H 3 (C 6 H 5 ) 3 . 



Styracene. 



Nitrosodimethylanilme 



C 6 H 4 (NO)N(CH 3 ) 2 . 

 Nitrosodimethylaniline aniline 



[C 6 H 4 (NO)N(CH 3 ) 2 ] 2 + C 6 H 5 NH 2 . 

 Phenanthrene C 14 H 10 . 

 Acetophenon C 6 H 5 , CO, CH 3 

 Benzophenon C 6 H 5 , CO, C 6 H 5 . 



Cases containing 64 preparations of the metals and other elements. 



Dr. Theodor Schuchardt, Gorlitz, Silesia. 



Vanillic acid C 8 H 8 O 4 , finely crystal- 

 lised as commercial commodity. 



Sugar-vannillic acid C 14 H 18 O 9 , pre- 

 pared by Reimer and Tiemann. 

 The compound is crystallised in the 

 bottle itself. 



Acetoeugenol C 12 H 14 O 3 , prepared by 

 Nagai and Tiemann. 



.Ferulic acid Ci H 10 O 4 , prepared by 

 Nagai and Tiemann. The above 

 acid is prepared synthetically from 

 Vanilla ; the white opaque crystals 

 are re-crystallised from alcohol, 

 the yellowish brilliant from water. 



W. Haarmann, Berlin and 



Conifcrin C 16 H22O 8 + 2H 2 O. 



Vanillin C 8 H 8 O 3 , small crystals are 

 in this shape, the commercial pro- 

 duct. 



Vanillin C 8 H 8 3 , slowly crystallised 

 from dilute solutions. 



Vanillin C 8 H 8 O 3 , from residues of 

 the artificial preparation of vanil- 

 lin, and sublimed in the same 

 manner as the vanillin of the 

 Vannilla pods at the ordinary tem- 

 perature. 



Vanillic acid, slowly crystallised from 

 dilute solution. 



Dr. F. Tiemann and 



Dr. 



Holzninden. 



fCH 2 . 

 Allylic-Alcohol \ CH. 



L CH 2 OH. 

 Prepared by distilling glycerine with oxalic acid and traces of sal ammoniac. 



Prof. B. Tollens, Gottingen. 



Chromic acid. 

 Molybdic acid, fused 



specimens. 

 Molybdic acid, fused. 



and sublimed 



Molybdic acid, sublimed. 

 Selenious acid. 

 Tellurous acid. 

 Tungstic acid. 



