Key points are not available for this paper at this time.
C. W. Stiles, Harry R. Crohurst, The Principles Underlying the Movement of Bacillus coli in Ground-Water, with Resulting Pollution of Wells, Public Health Reports (1896-1970), Vol. 38, No. 24 (Jun. 15, 1923), pp. 1350-1353
Stiles et al. (Mon,) studied this question.