MANURES: 



How to Make and How to Use Them 



A PRACTICAL TREATISE ON THE CHEMISTRY OF 

 MANURES AND MANURE MAKING. 



This new book on the chemistry of manures and manure making is a 

 complete and really important work, written specially for the use of farmers, 

 horticulturists, and market gardeners, by Frank W. Sempers, Director of 

 the Fordhook Chemical Laboratory. 



It clearly explains the 

 principles underlying soil 

 fertilization and gives the 

 best known scientific meth- 

 ods for preparing and apply- 

 ing natural and artificial 

 manures on the farm. It 

 has been demonstrated by 

 several of the State Agri- 

 cultural Experiment Sta- 

 tions and by scores of pro- 

 gressive farmers that chemi- 

 cal manures equal to the best 

 ready-made mixtures can be 

 made on the farm, without 

 the aid of machinery and at 

 great saving in cost. The 

 diiferent raw materials en- 

 tering into the composition 

 of fertilizers are plainly 

 described, and the best com- 

 mercial sources of supply 

 given. Considerable space 

 is devoted to tried • and 

 proved formulas, drawn from 

 the latest scientific re- 

 searches in America, Eng- 

 land, France, and Germany. 

 Simple explanations are also given of some terms in chemical technology 

 used in the State Agricultural Reports and in the general agricultural and 

 horticultural literature of the day. The arrangement and classification 

 are in accordance with the best scientific usage, and every formula is the 

 result of actual field experiment. The preparation of this book has in- 

 volved a large amount of careful work. 



Price, Postpaid, 50 Cents, 



or can be selected FREE as a premium on or- 

 ders amounting to FIVE DOLLARS or more. 



W.ATLEE BURPEE &C? 



Philadelphia. 



PUBLISHED BY 



W. ATLEE BURPEE & CO., PHILADELPHIA, PA. 



