[ 237 1 26 



Burlington is one of these newly-builtup towns, beautifully situated 

 Buriinston. °" tlie west bank of the Mississippi, aloncr the slope of a bluff 

 nnti.p h , ^^^^"f '"^^ northerly to tte Flint river. It deserves a passing 

 ?h 'Uppe'r Sii.;;-" """^ '''' ''^'^^^ ^' ^^^ '-- -P^^^ -^h'^^.at of 



r>.Ji;^^°"''7'"^,''^^'°" ^""^'^'^^ ^^'^ ^^''^'^^ subdivisions according to 

 niineraoa.cal and oryctognostical distinctions of character at Burlin5oP 

 and in the descending order : 'luu^iui., 



1. Superficial soil . . oc x- » 



2. Chert ' - - • - - 2 « 



3. Yellow limesione with spatic encrinites and productce * 10 " 



4. Calcareous argillaceous marl with kw fossils - - 3 <= 



5. biliceous limestone - - . . . q cc 



6. Oolitic limestone with jiroductce - - .' ' 9. a 



7. Bluish clay -...__ o .^ 



8. Yellow compact limestone - - . . ' 3 « 



9. Compact siliceous limestone with veins of calcareous spar -" 8 " 



10. Oolitic limestone - . . . . ^ \ ^^ 



11. Saccharoidal blue limestone, with veins of calcareous spar ^ 



and impressions of small orthis and strophomena - i » 



C/>;jer or Rock River Rapids, so named from their proximity to Rock 

 pY.Tp'' nver, above the mouth of which they are. On approaching 

 X^"" o?h7'^'^'' V^' "ft"' "^ '•'^ Mississippi, there is presented 

 whole west. ""'^"^ ^' beautiful a prospect as can be met with in the 



nn?'',^ni''^"'^.''°'"^' '"? ''^f'^ ^°^^'^^ ^^^'1 ^ ™«st luxuriant vegetation, 

 ^nd made picturesque by the ruins of an old fort; whilst the town of 

 Stephenson, and that of Davenport, with the beautiful range of sloping 

 hills in the rear of it, help to form so winning a landscapS, as alone tS 

 account for the rapidity with which settlements multiply in this potion 

 of the Mississippi. Other more substantial inducemenfs, how;ver are 

 dS ni h^''? ^-nmigrant, in the fertile lands that extend to 'a conside ab e 

 distance back on both shores of the river 



isl^d^nTnni ""l 1^' y^\i^ from fourteen to fifteen miles from Rock 



thP f II . H 't'^'"^'- .According to the surveys of Captain R. E. Lee, 

 fivP H h ' ^^^^^^^^«'PP>' f'-om the head to the foot of the rapids, is twenty-' 

 five and hree-quarters (25.74) feet. The waters roll over a bed of lime- 

 water Tnh' f n''^ ''''''''' sometimes reach quite across, so as at low 

 L!= ff f very shallow; or,.projecting and interlocking from opposite 

 sides afford nothing but winding, difficult, and dangerousl^hannels.^^ 

 is ^.V^Lu "''''/' ''^^ '^«"'''' ^'''> ^'•^^ ^^'^^ o^'er the lower rapids, 

 sofhrSp i^''^'''''^.^'^'''''''^^''' '^'^ '^^^' ^-^"d 'e^s in the channels 

 contimallV.r.TH^^ current, varying with the descent, and being 



sionid Iw ^h '^-^^ '^', '''^>' ^''^ "^ '^^ ^i^e^' "^^ tortuousness, occa" 



sioned by the projecting ledges above referred to, though not so g eat as 



ThP H r ,f"" '^""'^ predicate, is still rapid and difficult to overcome. 

 Ihe difficulty consists mainly, however, in the short turns and narrow- 



