198 GEOLOGICAL RECONNOISSANCE 
extend your observations as far south as Jacksonport. If you arrive at 
this place before corps No. 1, you will encamp at some convenient point, 
in the vicinity, and wait for further instructions; you will, however, occupy 
the time, while awaiting my arrival, in making explorations in the vicinity 
of Jacksonport.” 
Instructions received at Jacksonport, Jackson county, Ark., Nov. 17th, 1857. 
“ After crossing Black river, you will proceed to the zinc mines, situated 
on Reed’s creek, in the southern part of Lawrence county, and make a 
reconnoissance of that part of the country lying between Strawberry and 
Black rivers, as far north as township 17. You will proceed thence to 
make a reconnoissance of the country lying between Strawberry and 
Spring rivers, taking a north-west course towards Salem, in Fulton county, 
as far north as township 19 or 20. You will then explore Fulton county 
south of that line, and continue west, through the ranges of township 19; 
cross White river, and encamp at some suitable point near Yeilville, 
where you will await my arrival and further instructions.” 
Instructions, dated December 4th, 1857. 
“ After examining the salt-petre cave, situated in the Horseshoe bend of 
White river, in Marion county, and collecting samples of the earth for 
chemical analysis, you will recross White river, and examine that portion 
of Fulton county south of your previous route, and pass through Cross- 
plains. Thence you will proceed by ‘Evening Shade,’ in the south-west 
corner of Lawrence county, to Cury creek, in Independence county, and 
examine the prospect for lead ore in that county. After completing your 
observations in the northern and eastern part of Independence county, 
you will cross Black river and meet me at Jacksonport.” 
Instructions, dated May 12th, 1858. 
“ During the time I shall be absent in Pulaski and Hot Spring counties, 
you will examine the north-western tier of townships, not previously 
explored, in Randolph county, and visit Rice’s spring on the waters of 
Muddy creek, take its temperature, and make a qualitative chemical 
examination of it at the fountain head; you will investigate, also, what- 
ever may be of interest in that vicinity. 
From Randolph county, you will proceed through Lawrence county to 
Batesville, in Independence county, and examine the geological formation 
on the north side of White river, between that place and the warehouse 
below the mouth of Laferty creek; and especially ascertain whether there 
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