INDEX. 



251 



Page. 

 ■ _ 



Manganese ores, method pursued in their analysis 



their chemical constitution 



Manure, gypsiferous deposil in Greene county, valuable as a - 



lre , gypsiferous shale of Wa ihingtoa county, valuable ae e 



Marble, 'black, of Independence county 



of Van Buren county 



of Searcy county... ■••■•« 



encrinital, ot <- arroll county 



-limestone, of Newton county 



-rock, where most abundant ' '- ^ 



variegated, of Marion county ' ' „ 



Marion county • 



analyses of the ores of lead of . 1 Yl - 1 .">."> 



analyses of the ores of zinc of ^ 



buhrstone of • ' ggg 



manufacture of salt-petre in V V •.;,',^ ~, "r, 



nitre-caves of * " ^ j 



marble limestones of ^ 



occurrence of ores of copper in ■•-:• ••• •■• ' " ././- 



of lead in 4b-4ft, oJ, o.. ,..._>, --•> 



ot zinc in 



sandstone of • ^g 



section of strata in the lead-region of • ]y) 



Marionite, description and analysis of ^ 



Mariouite, formula of <>7 



Marl, shell-, of Greene county, analysis of ~ 7 



Marl, shell-, of Kentucky, analysis of *.\". ..... . 89 



Marshall's prairie • <J4 



Marshall's prairie, character of soil of 1:i 



Mattener's knob _jgj 



Methods of analysis ■ ■ 



Metamorphic rocks in Pulaski county, occurrence ot •• • ; _ 



Millstone grit, its vast extent in northern Arkansas. ••••••• '' ,07 



Millstone grit and the subcarboniferous limestones, boundary between the i»« 



Millstone rock of Independence county ~ l3 



Millstone rock of Lawrence county " ',."-' ~ () g 



Mining operations, prospect of, in Benton county 



. in Newton county •- ^ 



in south-east part of Madison county 



in the north-east part of Arkansas lut 



Missouri, description of the lead mines of " - 



Mitchell's hill, section on " '.q 



Modiola, in shale of coal measures y ^3 



Monroe county ' 7,43 



Monroe county, general character of ^ 



Morell prairie, soil of ... • 



Mounds in Washington county 



43 

 Naked Job of Izard county ' ^3 



Natural dam of Crawford county ' L) ~^ 



Nautilus in chert ~7jg 



Nautilus ferrutus ' ' 035 



NuropU ris in shale of coal measures g j 



Newton county ■ ,05 



analysis of nitre earth from ■ • • feG 



marble-limestone of J, . 



nitre caves of on 



occurrence of lead ore in . . _. 



prospect of mining for lead in • • • J 



section of strata near the mouth of Cave creek, in • • ■ *» 



Nitre cave, Bean's, of Marion county gg 



of Independence county ' g^_gg 



of Newton county ' . . ,. 



reported occurrence of a, in Washington county • • • • J* 



Nitre determinations in nitre earths from Marion county ' J > j* 



Nitre earth, analysis of, from Newton county • ' za 



from Bean's cave 178 



from Marion county ' 



Nitre earth, fatty principle in, from Thompson's cave • • 



Nitre, manufacture of, in Marion county 



, origin of 



