Mr. B. C. Brodle on Myricine. 259 



The numbers however are consistent with various formulae 

 besides that of the melissine. At 72° the melting-point is 

 extremely constant. A portion of substance was obtained at 

 this melting-point by repeatedly filtering the aetherial solution 

 from the melissine which first crystallized out of the hot liquid. 

 A time arrived when there was no difference between the 

 melting-point of the portion which first crystallized out of the 

 hot solution and which was on the filter, and that which after- 

 guards crystallized out of the fluid which had passed through. 

 The melting-point in both cases was 72°. B}' heating with 

 lime and potash, as in the case of melissine, this substance of 

 72° also affords an acid, which after the usual preparation, 

 gives very different numbers to those of the melissic acid. 

 This acid melts at 77°'5. 



100-00 100-00 100-00 



Between the second and third analyses the substance was 

 twice crystallized out of aether. The substance dissolved by 

 the aether had the same melting-point of 78° as the substance 

 on the filter. 



The silver salt of this acid gave the following numbers: — 



CO2. HO. 



I. 0'5054 grm. of substance gave 1-127 0-4572 

 II. 0*5182 grm. of substance gave 1-1505 0-467 



giving in 100 parts, — 



I. II. 



Carbon 60-80 60-56 



Hydrogen .... 10-05 10-01 



Oxj'gen and silver . 29-15 29-43 



100-00 100-00 



I. 0-617 grm. gave on ignition 0-1375 silver. 

 II. 0*7315 grm. gave on ignition 0*1625 silver. 



giving per cent. — 



I. II. 



Silver . . 22-28 22-21 



S2 



