286 PROCEEDINGS OF SOCIETIES. 



PLATE IV. 



ALSO ILLUSTRATIVE OF REV. PROFESSOR HAUGHTON'S PAPER 

 ON CLEAVAGE. 



(See previous page.) 



Figs. 3, 3a, 3b, 3c, represent the distortion reduced in the propor- 

 tion of 5 : 3. 



Figs. 4, 4a, 4b, 4c, represent the distortion reduced in the propor- 

 tion of 5 : 2. 



Vide page 96. 



