TY - SER TI - Journal of Hydrology. Vol. 22 No. 1,2 (1974) PY - 0000///[date of publication not identified] CY - Amsterdam : North-Holland Publishing Company. N1 - It contains of Papers, Book Reviews and Notes on January 1974 in Vol. 22 No. 1,2; What is and what is not a Markoz chain? / E. H. Llyod. On a possible extension of Darcy's law / S. Scheweitzer. Diffusivity of water in a non-saturated heterogenous environment / Ch. Debouche, S. Gaspar and L. Sine. Variable unit hydrograph / J. Y. Ding. A note on the relationship between size of area and soil moisture variability / S. G. Reynolds. Hydrologic investigations of the groundwaters of central Texas using U-234 / U-238 disequilibrium / J. Kronfeld and J. A. S. Adams. Air and water flow during ponded infiltration in a vertical bounded column of soil / G. Vachaud, J. P. Gaudet and V. Kuraz. A contribution to statistical depth - duration - frequency analysis / C. Cao. The use of radar in urban hydrology / G. L. Austin and L. B. Austin. Unit hydrographs for catchments of different sizes and dissimilar regions / R. G. Heerdegen and B. M. Reich. Regional development of groundwater resources in combination with surface water / R. A. Downing, D. B. Oakes, W. B. Wilkinson and C. E. Wright. Hydrologic impact of tropical storm Agnes / E. T. Engman, L. H. Parmele and W. J. Gburek. Discussion : hydrological investigation of the magnesian limestone of southeast Durham, England - a reply / T. Cairney. Book review ER -