52 THE ROYAL SOCIETY OF CANADA 



(2) The Reaction of Naphthalic Anhydride with Benzene and Aluminium 



Chloride 



By F. LORRIMAN 



Naphthalic acid was prepared by the oxidation of acenaphthene. 

 It was found that the anhydride is much more easily obtained by the 

 sublimation of the acid than by any of the methods described in the 

 literature. Tlie product of the reaction of the anhydride with benzene 

 and aluminium chloride is hard to free from aluminium compounds. 

 It has been purified although its formula has not yet been determined. 



(Under direction of Professor F. B. Allan) 



(3) Carhmethoxy-henzoyl Chlorides ivith Alnmininm Chloride and 

 Varions Aromatic Hydrocarbons 



By M. E. Smith, B.A. 



Isophthalic acid and terephthalic acid have been prepared in 

 some quantity from commercial xylene and separated by the different 

 solubilities of the barium salts. The acids were further purified by 

 the preparation of their esters. The three carbmethoxy-benzoyl 

 chlorides were prepared from the monomethyl esters of the three 

 phthalic acids. 



These Friedel and Crafts' reactions have given better methods of 

 preparing m-benzoyl-benzoic acid, p-benzoyl-benzoic acid, p-toluyl- 

 p-benzoic acid and 2, 4-dimethyl-benozoyl-o-benzoic acid. The 

 following new compounds have been obtained: p-toluyl-m-benzoic 

 acid, 2, 4-dimethyl-benzoyl-m-benzoic acid, 2, 4-dimethyl-benzoyl-p- 

 benzoic acid and several of their derivatives. 



(Under direction of Professor F. B. Allan) 



(4) The Action of Ammonium Fluoride on Yeast in Presentee of 



A gar -agar 



By Miss I. L. Roberts, B.A. 



Addition of agar in quantities insufficient to cause "setting" has 

 little influence on the behaviour of yeast in solutions of ammonium 

 fluoride in wort; concentrations of ammonium fluoride, however, 

 which, if dissolved in wort, would have very little efïect on yeast, will 

 completely prevent reproduction if contained in the wort-agar plate. 



Under direction of Professor W. Lash Miller 



