24& Dr. H*. A. Wilson on the Velocity of Solidification 

 Benzoic anhydride. 

 Melting-point, 42° C. 

 Density at 38° C, 1-188. 



| Velocity of Solidification. 



Viscosity. 

 (Water at 15° = 1.) 



Temp. 



Velocity. 



Temp. 



Time. 



Viscosity. 



38 

 35-0 

 30-6 

 26-5 



24-75 

 1875 



mms./min. 

 18-8 

 29-1 

 33-6 

 35-2 

 34-9 

 34-9 



39-7 



34-0 



33-3 



27 3 



20-65 



18-5 



121 



sees. 



287 5 



370 



382 



513 



757 



880 

 1384 



13-97 

 1784 

 18-57 

 24-92 

 36-79 

 42-77 

 67-25 



j 



Fig. 2. — Velocity of Solidification and Temperature. 



IOC. 



These results are shown in figs. 2 and 3. Calculating in 

 the same way as before, we get C=60, which gives the fol- 

 lowing results-:-^- •. . .. >, 



