346 



Scientific Proceedings, Royal Dublin Society. 



The results obtained two days later for the same sample agree very 

 closely with those obtained at first, notwithstanding its heating in the 

 previous test. 



This shows that the values are representative of the machined sample 

 with mercury electrodes, and in a measure indirectly suggests that it is not 

 appreciably hygroscopic. The same deduction may be made for white erinoid 

 Table 14, p. 352. 



Table 8. 



Red erinoid ; thickness 0'43 cm. 

 <t = 66B. 



