258 Mr. J. J. Thomson on the 



t Y = tho time two atoms stay together in the mole- 

 cule of A. 



t 2 = the time two atoms stay together in the mole- 

 cule of B. 



t 3 = the time two atoms stay together in the mole- 

 cule of C. 



t 4 = the time an atom of A stays with an atom of 

 B in the molecule of AB. 



t 5 = the time an atom of A stays with an atom of 

 C in the molecule of AC. 



— = the time an atom of A is free from another 



atom of the same substance. 



— = the time an atom of A is free from an atom of 

 P B. 



To 



— = the time an atom of A is free from an atom of 



c. 



— = the time an atom of B is free from another atom 

 P of the same substance. 



-i = the time an atom of C is free from another atom 

 of the same substance. 



Then, by the same reasoning as before, we have 



dm_2n u v 2m 2 mp mr - 



dt 



dn 

 di 



T 3 



dp _2q u 

 dt t 2 t± 



dq_p 2 _q 

 dt Ta t 9 



_ %P 2 __ m P 



d 



r 2s i 



r/?~"7o 1 



2r> 



ds : 



dt' 



du mp u 



dt t 2 t 4 



dv 

 dt 



mr 



(23) 



