61 



this river was 1400 yards wide, and yet no 

 running water was to be seen in all this dis- 

 tance, either in the river or its large tribu- 

 taries, except in one or two instances, where 

 it had evidently been occasioned by recent 

 rains, and extended but a mile or two, when 

 it disappeared. The thermometer was usu- 

 ally from 97-1 00", and the torment of noxious 

 insects was added to the other inconvenien- 

 ces attending the course of this river, which 

 is estimated to be one thousand miles in 

 length, from its source to its corjfluence with 

 the x\rkansaw. The collections made by 

 this expedition were numerous and import- 

 ant. More than sixty new or rare animals, 

 and several hundred insects were added to 

 the Fauna, and many interesting plants to 

 the Flora of the United States. The mine- 

 rals and organic remains were extremely in- 

 teresting, and the zoological notices which 

 are scattered through the work, highly im- 

 portant. The naturalist will regret that 

 these were not assembled together in an 

 Appendix, or published in a separate form. 

 In 1824 appeared a Narrative of an Expe- 

 dition to the Source of the St. Peter'' s River., &c, 

 under the command of the same skilful and 



