this salt, which is of the purest whiteness on the first boiling, and only takes about 80 gallons of water to produce a bushel. Hitherto these springs have been unaccompanied by any fossil remains of quadrupeds.
{180} This forenoon I was disagreeably surprised by a slight attack of the intermittent fever, which was also beginning to make its appearance in the family of Mr. Slover. In the spring, they were likewise affected by the influenza, which prevailed in the Osage village, and induced several pulmonary consumptions. No medicines being at hand, as imprudently I had not calculated upon sickness, I took in the evening about a pint of a strong and very bitter decoction, of the Eupatorium cuneifolium, the E. perfoliatum or Bone-set, not being to be found in the neighbourhood. This dose, though very nauseous, did not prove sufficient to operate as an emetic, but acted as a diaphoretic and gentle laxative, and prevented the proximate return of the disease.
20th.] This morning I left Mr. Slover's, and proceeded, by compass, across the Great Osage plain, towards the mouth of the Verdigris. My course was south by west, the distance being about 30 miles. Twenty miles of this route was without any path, and through grass three feet deep, often entangled with brambles, and particularly with the tenacious "saw-brier" (Schrankia horridula). The honey upon the grass, as at Sambo prairie, was so universally abundant, that my mockasins and pantaloons were soaked as with oil. Several insulated eminences, appearing almost artificial, served to diversify the cheerless uniformity of the extensive plain, still wrapt in primeval solitude. Not even a tree appeared, except along the brooks of Grand river and the Verdigris, which rivers, for 25 or 30 leagues, are not more than 12 to 15 miles apart. About
