250 



PROCEEDINGS OP THE AMERICAN ACADEMY 



The marked want of agreement between these numbers is undoubt- 

 edly due to the fact that the mixture was not homogeneous, and there- 

 fore the differences in size of the surface of contact between the water 

 and benzylbromide in the different tubes had a marked effect on the 

 result [Compare p. 242]. 



In spite of the inaccuracy of the method two experiments were 

 :'arried through with the following results : — 



Table V. 



Temperature 135°. 



These results calculated into the form of Table II. become : — 



The very high number for the ortho compound in the second exper 

 iment is probably due to a previous decomposition of the substance 

 similar to that observed in the principal series of experiments [See 

 page 247] . The other results, as far as they go, confirm those obtained 

 by the acetate method. 



In the following table all the numbers thus far obtained are com- 

 pared : — 



Table VL 

 Acetate Method. 



