Dr. A. von Planta and Mr. W. Wallace on Apiine. 219 



The mass obtained as above dissolved veiy readily in boiling 

 water, giving a perfectly clear and nearly colourless solution, 

 which when cold gelatinized, and was not in any respect diffei'ent 

 from the original substance. 



VII. Transformations. 



1 . Effect of long boiling with water. 



About 0'3 grm. of apiine was dissolved in 4 or 5 oz. of hot 

 water, and the solution was kept boiling during about six hours, 

 the solution being made up with water from time to time as it 

 evaporated. The product, when carefully brought to dryness in 

 a water-bath, was of a much darker colour than the pure apiine, 

 being of a light olive-brown tint ; otherwise, it did not appear to 

 be much altered, although the gelatinizing power was perhaps 

 not so great. 



A combustion of this substance gave the following residts : — 

 0-158 gi-m. -0-002 ash (1-3 per cent.) =0-156 gave 0-0885 

 water and 0295 carbonic acid ; or by calculation — 



Carbon 51-57 



Hydrogen 6-30 



Oxygen 42-13 



10000 

 These numbers give a formula which approximates closely to 

 C24H16 015, or— 



Found. 



24 Carbon 144 51-43 51-57 



16 Hydi-ogen .... 16 5-71 6-30 



15 Oxygen 120 42-86 4218 



280 100-00 100-00 



The result is a somewhat singular one ; and, in order to con- 

 firm it, another experiment of a different character was made. 



0-29 grm. diy apiine was boiled Math water, as in the former 



case, and the solution was evaporated in a platina capsule. The 



residue, dried in a water-bath, weighed 031 52 grm. The ash, 



amounting to 0004 grm., subtracted from this, gives 0-3112 grm. 



0-29 : 0-3112 :: 262 (equiv. of apiine) : 281-15. 



This makes the equivalent of this substance 281-15, instead 

 of 380. 



It may therefore be regarded as apiine combined with 2 cquivs. 

 of water, or C'^" H'" 0'^ 2H0. 



2. Action of boiling dilute sulphuric acid. 



When apiine is boikid during several hours with very dilute 

 sulphuric acid, it is decomposed, a substance of a similar nature 

 being produced, only differing from it in containing less hydi-o- 

 gen and oxygen in tlic proportions neccssaiy to form water. 



