ON THE [NTEGRATION 



OF PARTIAL DIFFERENTIAL EQUATIONS 



OF THE N"' ORDER WITH ONE DEPENDENT AND TWO 

 INDEPENDENT VARIABLES. 



BY 



M. FALK. 



(PKKSKNTEÜ to the I;OYAL SOCIETY OF UPSALA , THE 12 APKIL 1871). 



UPSALA. 



PRINTED BY ED. BKRUNG. 

 1S72. 



