52 KANSAS ACADEMY OF SCIENCE. 
Black shale@cepcnssse <i oenicee nee 0-6 1166-6 Dark, sandy/shalay..- --s..- eee 28 1248 
COAT eee eeeeeca ene ee naeinente 0-2 1166-8 Dark, sticky shale.. cooncece 8-0 1256-6 
Dark-blne shalescesccccsracetes 3-4 1170 COATS. oh 60.8 eee Q-11 1257-5 
Hard, black shale....... BkeasoneC 5 1175 Sandstone :.°.<.. -.f ss. eee 0-1 1257-6 
Hard, dark shale, lime in it..... 2 1177 Sandstone, shale partings....... 9-6 1267 
Hard, black, laminated shale... 10-9 1187-9 Sandstone, dark partings....... 20 1287 
WOATI. uebiincccstioene cnctceteaen 2-4 1190-1 Sandstone, aaa partinge: Neaesiae 10 1297 
Dark ehale. ic.sccueccseodeceices 0-11 1191 Hard, black shale.. sees ctohalee 1299 
tee Slate: Jccnsacen see ecereeeoee 6-6 1197-6 White sandstone................. 8 1307 
Le cisbin) site celle deere ben aitene 1-3 1198-9 SANAStONEL occ ccloc oc nn enemmiele Seen’ 1315 
Dark GlAtO ics oie eo Sceewtemnc melee 2-3 1201 Lam eOston@ iis icccinnc ocwlss coviccene 38 1353 
Dark shaloocac-senceecocness: 19 1220 
ANALYSES OF THE MISSISSIPPIAN (SUBCARBONIFEROUS) 
LIMESTONE FROM THE ATCHISON PROSPECT WELL. 
BY FRED B. PORTER, LAWRENCE. 
Read before the Academy, at Topeka, December 29, 1900. 
After the core of the diamond-drill prospect well at Atchison was brought to 
the University of Kansas, two samples of the lowest strata reached by the well 
were analyzed in the quantitative chemical laboratory, under the direction of 
Prof. Edward Bartow. A sample from a point twenty-six feet from the bottom 
and 1124 feet below the surface was analyzed by Maud Hodgdon, and a second 
sample, from the last six inches of the core, was analyzed by N. L. Stewart and 
the writer. 
The results of the analyses are as follows: 
No. 1. No. 2. No. 3. 
Hodgdon,. Stewart. Porter. 
DINGIOUS IMALIAE.. sock »<ic 51 © aie aleetmeete see es Wioten nie 2.34: -«omte ae 3v63 
Biles (SiOs) eee ssh. ven < heen sector «daa wise 2 2:27 eee 
Dren Oxid (MesOa) ioe a:F5 Scan dee teeth chev ei fates aus op Wie wel -40¥) Ye Sees 
Aduminum OIG: ATsOs) sc selena +» eave sts he cs a ote .65 .o4* 86 
Calerum OxXiIGMOaO))ceces : emer ie ee ick siswyas sis ap 52.98 52.45* 53.11 
Mapnositm oxidi( MeO). ox sic peereis = pcaccces -aieg 02 .72 .48 
Carbon dioxid (CO2), calculated for CaO and MgO.. 42.16 42 .02* 42 .29* 
Carbon dioxid. Getenmnined... .- . cach sss codes cus (neers ) (42.41) (42.15) 
Moisttire)( He@) sno eee ea a seco as ws oe atolre .08 .14 .09 
To belay tos one ce CE rena atee pests ‘sn ain beieie Ria 98.73 98.43 99.96 
The analyses marked (*) are from single determipvations; the remainder, from 
an average of two or more, 
A hypothetical combination of the above constituents is as follows: 
No. 1. No. 2. No. 3. Galena. 
Silicious\matter, OF SOs. -e se. es oe = 2.34 2.27 3.08 1.00 
Tron-and’aluminunitoxids!)=/-cer ets a= > ss .65 .83 .36 .69 
Calcium carbonate (CaCOs)............... 94.58 93.68 94.84 97.32 
Magnesium carbonate (MgCOs) ........... 1.08 1.51 1.04 .80 
Woailter’(Bis®) ae re wo eee te cas ant .08 .14 ,0D “io 2a 
Ht N'0y 1 = eran aang id eats eed Sc 98.73 98.43 99.96 99.81 
Column 4 gives an analysis of the Subcarboniferous from Galena, recorded in 
the United States Geological Survey for 1894, part IV, page 505, and shows the 
relation of composition of the same strata in two localities. 
