L. E. liOBINSON 
13 
3.2 3.4 3.6 3.8 4.0 4.2 4.4 4.6 4.8 
Fig. 1. Correlation diagram of the measurements of length and breadth of 80 males of 
Amblyomma hebraeum (Lot No. C. 263) collected at Gonubie Park, S. Africa, in 1905. 
Lengths plotted as abscissae, breadths plotted as ordinates; aU measurements in 
millimetres. The inclined lines indicate the principal - ratios. 
length 
