No. 129.] ■S'ZS' 



have rendered in all the branches of rustic industry. Professor 

 Mapes has been one of the most useful — aye, the most distin- 

 guished disseminator of intelligence, in relation to the scientific 

 principles to the practical operations of the cultivation of the soil. 

 Being himself a farmer and gardener, the results of his experi- 

 ments are precious TRUTHS, which cannot be ascertained and 

 established in any other manner. He does what science dictates, 

 as> a SKILLFUL TILLER OF THE EARTH, Instcad of merely inforining 

 the uneducated farmer and gaidener what abstract principles of 

 chemistry and geology can be usefully applied in the prosecution 

 of their labors. The latter can adopt the process, when instruct- 

 ■ed as to the nwde^ and the learned Professor has a very remark- 

 ably lucid and intelligible method of imparting knowledge, to all 

 •classes of people, who can read and are accustomed to work in a 

 field or garden. Like all men of real genius and intelligence he 

 «an come down into the rank and file of the multitude, and re- 

 late to them what it is important they should know, in terms 

 leveled to their capacities. Many may understand the laws of 

 science, but never having applied them, are unqualified to teach 

 otheis. To do this is an important art, and all can comprehend 

 a proeesss when it has been practically illustrated, by him who 

 knows and can execute what is required. 



The account he gave of his experiments on subsoil ploughing 

 and draining is of the first consequence, and cannot fail of indu- 

 cing thousands of farmers and gardeners to adopt both of these 

 important modes of increasing the fertility of their grounds. 

 One such practical chemist can do more in aid of cultivation 

 than has been accomplished by all the theoretical books, and all 

 the societies which have appeared in this, or any other country. 

 For to render a book useful in the arts, it must be written by a 

 scientific artist. Art without science is impotent, and science 

 without artistical application is worthless. 



The efforts of societies are unavailing unless they collect and 

 reflect back upon the people the results of the experiments, the 

 investigations and the inductions, and demonstrations of illus- 

 trious individuals. There are no other modes of arriving at facts 

 and truths. Thus it is, tliat the French National Academy have 

 done so much. Mere theory is not tolerated until established 



