8 Transactions of the 



The two following are found at Carbondale, No. 1 above a coal bed, No. 2 beneath it: 



No. 1. No. i. 



Water, given off at 212° F 8.50 3.00 



Organic matter 2.00 2.00 



Silica 27.50 48.60 



Alumina .' 39.50 21.85 



Protoxide of Iron 18.05 16.70 



Sulpliateof Lime 3.90 6.80 



Sulphate of Magnesia 0.35 1.05 



100.00 100.00 



These last irom Carbondale are good average samples of the so-called fire clays of 

 Eastern Kansas. 



Recently there has been discovered on the line of (he K. P. R. W. a beautiful pure 

 white porcelain clay, that remains perfectly white after being subjected to a strong heat. It 

 is apparently pure enough for the manufacture of a fine quality of porcelain, and for 

 many other uses in the arts. The deposit is said to be extensive, uniformly pure and 

 easily worked, characters which, if true, make its great value fully assured. Its compo- 

 sition is — 



Silicate of Alumina. | Silicate of Lime (a trace). | Peroxide of Iron (a trace). 



A very pure sample of native rock salt was brought me from the southwestern part of 

 the State, consisting of — 



Chloride of Sodium 92.20 ' Sulphate of Soda 4.91 



Chloride of Magnesium 0.81 i Silica 2.08 



100.00 

 The locality from which it was taken, and the extent of the deposit, are unknown to me. 

 The following analysis will be of general interest, as it shows how powerful diaphore- 

 sis can remove from the body by perspiration, mineral compounds that are not ordinarily 

 eliminated through the skin. A gentleman who had been suffering for three years from 

 general debility, decided to try the effects of the Turkish bath. After a few trials find- 

 ing his condition improved, he desired to know whether anv noxious mineral matter 

 was being eliminated by the sweating process, and brought me a sample of perspiration 

 for analysis. After standing a few liours, a residue settled, which wa.s examined sepa- 

 rately. The result was as follows : 



FILTKATK. 



Reaction neutral. | Water. | Organic matte!-. | Chloride of Sodium. 



Sulphates of Soda and Potassa. | Pliosphate of Lime. 



KESIDUE. 



Organic matter. | Alumina. | Sesqui-oxide of Iron. | Phosphate of Lime. 



Attention is called to the presence of alumina, sesqui-oxide of iron, and phosphate of 

 lime, substances that we would not expect to find in perspiration, and which ought not to 

 be eliminated from the system faster than tliey are naturally excreted. This case must 

 be an exceptional one, I think, as the Turkish bath, for properly-selected cases, is a valu- 

 able tonic and remedial agent, that invigorates the system, not- a debilitating agent that 

 abstracts the sources of its vitality. Wm. H. Saunders, M. D. 



Lawrknok, October, 1874. 



A GEOLOGICAL SURVEY OP' KANSAS. 



We have an area of territory ten times as large a.s Massachusetts (78,000 scpiare miles) 

 much of it only yet visited by the hunter, and tlie geological character of even the set- 

 tled portions but little understood. 



Enougli coal exists, at least for a home supply for ordinary domestic heating purposes. 

 But even when valuable for generating heat, how umch is known in relation to its worth 

 for making gas, smelting iron ore, or for tlie common uses of blacksmithing? 



