78 KANSAS ACADEMY OF SCIENCE. 



No. and name. County. 



492. Kaolinite (clay) Cherokee, Linn, Morris, Osage, and in most of the coun- 

 ties of the State. 



Catlinite Po.ttawatomie [Failyer], in drift. 



.597. Vivianite Douglas [Bailey], Nemaha [Willard]. 



719. Barite Atchison [Knerr], Brown, Cherokee, Ellis, Graham. Jef- 



ferson, Logan, Lane, Nemaha, Ness, Scott, Sheridan, 

 Wallace, and in Douglas in concretions. 



720. Celestite Garfield, Riley, Saline, Washington; also in concretions 



in Douglas, Jefferson, and Riley. 



721. Anglesite Cherokee. 



722. Anhydrite Ellsworth [Failyer], Kingman [Willard]. 



743. Mirabilite Common as an incrustation in many of the western 



counties. Known as "Alkali." 

 745. Gypsum Very abundant in many of the southern and western 



counties, especially in Barber, Comanche, Clark, Ellis, 



Logan, Marshall, Meade, Saline. 

 Alabaster Franklin, Mitchell. 



I^^^.^P" J Cherokee. 



Selenite ) 



749. Goslarite Cherokee. 



Coal Bourbon, Cherokee, Crawford, Linn, Leavenworth, 



Osage. As lignite and earthy varieties in Douglas, 

 Cowley, Franklin, Geary, Jackson, Leavenworth, Mitch- 

 ell, McPherson, Montgomery, Miami, Neosho, Riley, 

 Wabaunsee. 



ON THE COMPOSITION OF SOME KANSAS BUILDING STONES. 



E. H. S. BAILEY AND E. C. CASE. 



The building stones of the State have never been systematically examined. It 

 is true that there are various reports and analyses in tlie publications of the State, 

 and in the meager geological reports; there are also a few descriptions of rocks and 

 their localities, but in some cases only the local name of the stone is given, and this 

 is liable to mislead. As, for instance, when a stone is called a marble that is really 

 a gypsum, or a granite when it is a sandstone. 



In conjunction with the work of Professor Williston on the structure of the stones, 

 and of Professor Marvin on their resistance to strain, the chemical department has 

 undertaken to make analyses of the more important rocks from various localities. 

 These analyses are made as complete as the case seemed to demand. In most of 

 them a test has been made for sulphates, as their presence has an important in- 

 fluence upon the lasting qualities of the stone. Not more than 1.36 per cent, of sul- 

 phate of lime has been found thus far in any sample. One of the purest limestones, 

 that from Garnett, contains 97.32 per cent, of carbonate of lime. In the limestones, 

 the iron that is present is nearly all in the ferrous state. Whether this has any in- 

 fluence on the durability of the stone has not been determined. 



Some of the stones are locally known as "magnesian limestones," but the analy- 

 sis shows that none of them, with a few notable exceptions, contain much over 2 per 

 cent, of magnesium carbonate. The complete analyses of these rocks, with all the 

 data in regard to their structure, strength, and occurrence, is attached to the speci- 

 mens now on exhibition at the Columbian Exposition, and will be published later. 



