XIV CONTENTS. 



APPENDIX. 



Account of a plan proposed by Dr. KLOTZSCH, of Berlin, 

 protecting potato-plants from disease ... ... 102 



This plan published by authority of the Minister of the In- 

 terior of Prussia, on the favourable report of the Presi- 

 dent of the College of Rural Economy at Berlin ... 108 



Conditions on which the reward, claimed for his plan, if 

 found effectual, by Dr. KLOTZSCH, has been granted ... ib. 



