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CO 
The Cephalic Veins and Sinuses of Reptiles 
viduals sometimes endeavored to execute the movements with the eyes 
open and alert. In other species satisfactory results were obtained only 
after prolonged observation. 
In the same individual the energy and promptness of the response 
varied according to the point of application of the plaster, the move- 
ments occurring more quickly when the sense organs were affected, 
although the same reaction followed the application of plaster to other 
parts of the head. 
Fig. 11. Sceloporus undulatus. Another specimen showing protrusion of 
second stage. xX 3/2. 
The intervals between successive movements were also quite variable. 
In a given individual the movements were usually repeated with greater 
frequency soon after the plaster became dry. If the plaster was not re- 
moved as a result of these movements the intervals became longer. For 
example, in a specimen of Anolis nineteen cycles of intumescence were 
observed within one hour, but ten of these occurred during the first ten 
minutes of the period. In this case the movements began five minutes 
after the application of the court plaster. 
Additional pecuharities of behavior in different species are given in 
the following list, which includes all species treated by the court plaster 
