OF ARTS AND SCIENCES. 



375 



III. 



49.32 



While we have been unable to establish with precision the constitu- 

 tion of the foregoing derivatives of furfuracrylic acid, the analogies 

 offered by the derivatives of pyromucic and cinnamic acids naturally 

 suggest the following formuliE for the substances in question : — 



Bromfurfurbromacrylic Acid. 



Bromfurfuracrylic Acid. 



