856 



intersexual exponent, are fnlly recorded in Table 1, so as also to 

 show tlie individual values of the body weight and the brain weight 

 by the side of the mean values. 



TABLE I. — Body weight and brain weight of Semnopithecus maurus F. Cuv. 

 > (Determinations in Java by J. H. F. Kohlbrugge) 



I have omitted a single particularly low body weight, 3600 grams 

 for a female specimen (Kohlbrugge's N". 11), because I could not 

 place a corresponding low body weight of a male specimen over against 

 it. The curves of variation are now for the two sexes, one-sided 

 towards the same side, and may, therefore, be compared. On the 

 other haud in this and in the following table another (unnumbered) 

 female specimen (f) has been inserted, which is not met with among 

 Kohlbrugge's records, of which the latter had kindly furnished (he 

 data to me on the day of the determination (in 1897). Among the 

 data also three determinations of brain weights have been inserted 

 of almost adult individuals (in the second period of teething), because 



