Illinois in 1837 [electronic resource] : a sketch descriptive of the situation, boundaries, face of the country, prominent districts, prairies, rivers, minerals, animals, agricultural productions, public lands, plans of internal improvement, manufactures, &c. of the State of Illinois : also, suggestions to emigrants, sketches of the counties, cities, and principal towns in the state : together with a letter on the cultivation of the prairies by the Hon. H.L. Ellsworth : to which are annexed the letters from a rambler in the West