184 APPENDIX. 



rivers there is timber. The country as far as the 

 Rocky Mountains, 700 miles, is said to be so level 

 that the journey may be made the whole way in a 

 carriage." 



Professor Voelcker described the general cha- 

 racter of four Prairie soils he analysed for me in 1858 

 as " very rich in nitrogenised organic matter. In- 

 deed, I have never analysed before soils which con- 

 tained so much nitrogen, nor do I find any records 

 of soils richer in nitrogen. It is this large amount of 

 nitrogen, and the beautiful state of division, that 

 impart a peculiar character to these soils, and dis- 

 tinguish them so favourably." 



CASSELI., PETTEK, GALPIN & Co., Belle Sauvage Works, London, E.C. 



