150 
The following may be of some use in the pursuance of 
this object. 
Let, (y + a)\y + b) m = pef cdx (30) 
where a , b } c are functions of x, and p constant. 
By taking the log. of (30) it is readily shown that 
y \ - cy 2 + {wa 1 + mb 1 - c(a + b)}y + nba 1 + mab 1 - abc 
(n + m)y + ma + nb 
If m = - n, then, (y + a) n =p(y + b) n e fcdx is a particular integral of 
+ c £. + K a + 6 ) _ a l ~ h \ , 
^ n(a - b) - b) a -by 
abc 
ba l - ah 1 
n(a -b) a-b 
— 0...(32) 
