Figure 14. Illustration of Wolff, showing accreted twins. 



In regard to opinions concerning monstrosities as 

 a result of sharp deviations from normal development, 

 there are Wolff's judgments about the variable features 

 in general, which are observed in particular in human anatomy 

 The latter was elucidated by Wolff's special work, "About 

 the instability of the structure of the human body and 

 about the examples selected for the demonstration of this 



101 



