262 Mr. B. C. Brodie on Myricine. 



I will sura up the results of this investigation by giving a 

 list of the principal substances of which an account has been 

 given in this and the preceding papers. This table will exhibit, 

 at one view, their relations to one another, and to the natural 

 substances from the decomposition of which they are derived. 



Cerotic acid [cerine] . . . =C54H54 04. 

 Chlor-cerotic acid . . . . ^^^^^Qf^O^. 



Cerotic aether ..... =C^^^^^O^=^^^^^q^' 



Chlor-cerotic aether . . . =(::^J^fO^^\^^^C\^P'^' 



"-^^i^ [C4H5O. 



Cerotine =:-Cc^Yi^Oc,. 



Sulphate of oxide of cerotyle = SO3, C54 H55 O + HO. 



Chlor-cerotal =CtA{^\^ ^t 



Cerotene [paraffine] . . . =0541154. 



fC /^35- 

 ^^1 Cl,9. 



Chlor-cerotene =<) Cc^\^f' 



n / "82- 

 -^^ IC),,. 



Chinese wax =^^^^^^^^^= {c'^lo': 



Melissine ^^m^e^^v 



Chlor-melal =C6o|Sl^'' O,. 



Melissic acid = Cg^ Hgo O4. 



Melene [paraffine] . . . = CgQ HgQ. 

 ^Palmitic acid = C32 Hgg O4. 



Myricine (pure) .... ==C^^U^O^^i^^^^^'^^' 



1 might add to this list the acid C49 H^^ O4, the constitution 

 of which however, for the reasons 1 have given, I cannot con- 

 sider to be made out with sufficient certainty. 



We should naturally suspect some intimate chemical rela- 

 tion between wax and fat from their similar appearance and 

 properties. This suspicion gave rise to the idea that wax was 

 convertible into fat, and to the hypothesis that wax was to be 



