Geological Surveys of Kentucky and Arkansas. 235 
in the description of the analytical process, and that figuring in 
the analyses does not appear to have been directly estimated, 
but to have come from the oxalic acid of the reagent shelf. 
If, as might easily happen, the contrary not being proved, a 
portion of the lime dissolved by hydrochloric acid exists in these 
soils as silicate, sulphate or phosphate, then the assumption that 
it is united to carbonic acid introduces an error into the summing 
up (which in many cases is exactly 100) afid shows that a quan- — 
*: of some other ingredient has been overlooked. 
or the estimation of phosphoric acid a highly modified form 
of Sonnenschein’s process is employed, but our author does not 
give the figures which prove that his changes are improvements. 
_ Admitting however that the analyses are correct—we next 
inquire what is their value—what useful deductions from them 
‘ te M4 
Dr. Peter, in the same volume, page 166-7, observes :— It is 
believed that by em mode cone by chemical analysis or by 
e more tedjous and laborious method of actual experience, in 
cropping for a series of years and publish 
Same, can the actual nature, é 
ri x a State be presented to we public; 
ing this Geologico-Agricultural Survey, a 
not only aids ep in the progress of the ties ss 
of the civilized world, and that of the soil in particu a: 0g 
es the most effectual mode of making known to ae ig - 
«ned immigrant her agricultural riches. In this she has : owe 
the wise lead of the older state of Kentucky, 10 Mb ed gr 
the institution of her geological survey, the value of the Jan 
