Dataset: fowlvirus.dat Source: D.B.W. Reid, J.F. Crawley, and A.J. Rhodes (1949). "A Study of Fowl Pox Virus Titration on the Chorio-Allantois by Pock Counting Technique," Journal of Immunology, Vol.63 pp. 165-171 Description: Pock Counts per membrane for 50 embryos exposed to one of 4 virus dilutions (multiples of 10^(-3.86). Variables/Columns Dilution factor 4-8 Number of pocks observed 15-16