ERRATA. 



p. 29, line 20, for "Fox Hills" read Ft. Pierre. 



p. 43, line 15, for '■'■argentifacies''^ read nobilis. 



p. 109, line iS, for "beyond" read before. 



p. 125, line 21, for "Panicufn sanguinaW^ read Setaria ger7nanica. 



The plates illustrating Prof. Blackmar's article "Penology in Kan- 

 sas" numbered "i. 2, 3, 4" and "5," should be numbered 14, 15, 16, 

 17 and 18. 



