4 PREFACE. 



But that argues nothing. Good milk may be ob- 

 tained at a far less cost for a given quantity than 

 cream or butter. We charge for the ideas, which are 

 our own, and not for the paper on which they are 

 printed, or the covers which contain them. The lat- 

 ter are easily obtainable, the former are not. If you 

 buy a pound of sugar for a shilling, and the mer- 

 chant sends it to you in a china bowl, you will thank 

 him for the bowl rather than grumble because he did 

 not send a ten-quart pail. 



That all who purchase a copy of this work may be 

 enabled to profit by its teachings, an hundred-fold 

 upon their investment, is the sincere wish of 



THE AUTHOR. 



