Extensive analyses of limestone formations throughout eastern Kansas have been repo,rted by Runnels and Schleicher (5)7 Donald L. Graf (2) and L. F. Laporte (4). However, all their work concerned the total content of the entire layer at each site (channel analysis). They reported total iran as Fe203 and did not determine how much of the iron was in ferrous and ferric forms. Lanning and Twiss (3) reported the vertical variations in calcium oxideX magnesium oxide? manganese, potassium oxide, acetic acid insoluble and ignition loss in going from the bottom to the top of the Cottonwood limestone bed in Riley County? Kansas. The Cottonwood limeston,e) a member of the Beattie Formation of the Permian System, crops out in a tigzag north south iine across Kansas from Nemaha through Crowley counties. The five to seven foot bed has at least three distinct layers. In Riley Countyn the center layer is about 4 inches thick; the upper and lower layers are a little over three feet in thickness.