BOLOGISt 1 I 



GTI 



much has already been said of the geographical and 

 I n of the gypsum of out State, that 1 only add a 



fow memoranda. 



The following analyses were performed, at my request, by 

 Frof. L. R. Flak, of the Agricultural Coll< 



-. 1 Ran] li 



Oypsmif Ohio Cyp*um. 



W iter 20.8445 20.8631 



Silica* acid, Tr:i< ■<•. . 0235 



Alumina and Oxyd of Iron, 5354 .7626 



Sulphuric arid,.' 46.8257 8303 



Lime 33.03' 31.5628 



Potaaaa 8115 .2676 



B 0140 .0944 



Chioiine, ....* 0078 .OOoO 



il 09.8174 09 4093 



The ab i hot exhibit at a glance, the com- 



i Ive purity of the two products; we therefore calculate the 

 following further 



-.1 Ripiis. Ohio. 



Lime. B8 \9b 9 



Sulphuric acid required for this 4">. 7696 4.". I 



Wau 1 for these two, 2(1 5968 



• :»n 06. 4 l.J 9t>. tf-i . S 



4*561 . 7406 



I water 24 <3 



constituents, 7687 1 . I 



fore, 99. 8774 01 ; 8 



It thus app- i Grand ftapida gypsum 



iris in 100. <>r impu 

 arid the ■ impurities 



i illy 

 »lc with • ryp»u'm 



1 R ■•.ids sampl ■, an I 1 . 1026 in Hi 

 i . . 

 former .9141 per n nt and of the latter i .904 per • •■ 



