NEV BOOKS. 



Lectures on Agricultural Chemistry and Geology. " The profit of the earth is fo 

 all ; the King himself is served by the yield." — Eccles, v. 9. By James F. W. Jobs 

 ston, M. a., F. R. S. S., L. & E., etc. With an Appendix. Republished b 

 Wiley & Putnam. 619 pp., besides the Appendix of 89 p. Price, 12s. 



The American publishers of this work have performed an 

 ceedingly important service to the American farmer, by givii 

 these lectures of Prof. Johnston in a compact and cheap form- 

 for cheap they are, considering the amount of matter which thi 

 contain, and the great interest of the subjects which are discuss 

 in them. 



There is only occasionally a work so opportune as this ; on 

 which the times required, and without which, a blank would ha^ 

 been very obvious to every intelligent agriculturist. We hav 

 in fact, very rarely studied a work which came up to so high 

 standard of excellence as this, and which of itself forms what mi 

 be truly styled " the Farmer's Text BookP The lectures a: 

 plain and simple, yet full, and though the subjects themselV' 

 would excuse the use of many technical terms, yet there are nor 

 of which the farmer can complain. 



The author has divided them into four parts, taking up ai 

 treating the subjects in the order of their simplicity. He con 

 mences with the elementary principles which belong to the su 

 jects, and proceeds to those which are more complex, and farth 

 removed from the common attainments of gentlemen who ha- 

 not made chemistry and its kindred sciences special subjects 

 cultivation. By this disposition of the matters treated of, tho 

 obscurities are really avoided which may seem to exist, when tl 

 more advanced part of the course is reached, and are taken i 

 without reference to what has preceded, or what has been alreat 

 explained. The reader will see from the following brief synops 



