THE 



DISEASES OE CEOPS 



AUD 



THEIB EEMEDIES: 



A HANDBOOK 

 OF ECONOMIC BIOLOGY FOB FARMERS AND STUDENTS. 



a; B." GRIFFITHS, Ph.D., F.R.S.E., F.C.S., 



Late Principal of and Lecturer on Chemistry and Biology^ the School of 



SciencBt Lincoln; Lecturer on CTiemistry, Lincoln Grammar 



School; Formerly Director of the Chemical Lahoratories^ 



Manchester Technical School; Member of the Chemical 



Societies of Paris and St. Petersburg ; Author of 



'*A Treatise on Manures,'* **Jlfanures and theiv 



Uses," etc., etc. 



ILLUSTRATED. 



I.ONDON": GEOEOE BELL & SONS, 



YOEK STREET, COVEKT GARDEN. 



1890. 



