146 



TABLE 128. 

 VELOCITY OF SOUND IN SOLIDS. 



The velocity of sounds in solids varies as VE/P, where E is Young's Modulus of elasticity and p the 

 density. These constants for most of the materials given in this table- vary through a somewhat 

 wide range, and hence the numbers can only be .taken as rough approximations to the velocity 

 which may be obtained in any particular case. When temperatures are not marked, between 10* 

 and 20 is to bo understood. 



