28 



to extol its merits, while of the thing itself 

 we have nothing certain. In the first 

 place, we are directed to use no less than 

 five ingredients, in certain proportions, 

 without the addition of any liquid ; then, 

 in order to keep it moist and preserve its 

 efficacy, we are directed to keep it co- 

 vered with " urine of any kind ;" after- 

 wards we are directed to " use it in a li- 

 *• quid state, or about the consistency of 

 " thick paint," by mixing it with urine 

 and soap suds : still we are not told what 

 kind of urine is to be used. 



But after amusing his readers for 

 twelve years, with accounts of the merits 

 of his discovery ; in the Postcript to the 

 Third Edition, the author informs the 

 reader oi another discovery, which, he says, 

 he has " recently made ; and which, as 

 " being calculated to save time and la- 

 " hour, may deserve attention." (It 

 would certainl\^ have saved much of 

 both, had he always been as considerate.) 



