328 



APPENDIX II. 



Composition of the Four Prairie Soils, showing the 

 Portion soluble in Acids and the Portion insoluble. 



Royal Agricultural College, Olrencester, 

 December 28*A, 1858C, ' 



AUGUSTUS VOELCKER. 



APPENDIX III. 



" Royal Agricultural College, 



Cirencester, Dec. 28th, 1858. 



" DEAR SIB, I have now the pleasure of handing you the re- 

 sults of detailed and careful analyses of the four soils you sent to 



