Journal of Hydrology. Vol. 25 No. 1,2 (1975). 

 - Amsterdam : North-Holland Publishing Company.  [date of publication not identified] 
 - p. 
<br/><br/> It contains of Papers, Book Reviews and Notes on April 1975 in Vol. 25 No. 1,2. 
<br/><br/>The relevance of aquifer flow mechanisms to exploration and development of groundwater resources / M. J. Reeves and W. B. Wilkinson. Isotopic composition of groundwater in semi-arid regions of southern Africa / J. C. Vogel and H. van Urk. Welsh floodplain studies : the nature of floodplain geometry / J. Lewin and M. M. M. Manton. Digital simulation model of aquifer response to stream stage fluctuation / M. A. Marino. Dispersion effect of buoyancy-driven convection in stratified flows through porous media / J. E. Weber. Seasonal variability of rainwater redistribution by field soils / I. Reid. The Na'aman springs, northern Israel : salination mechanism of an irregular freshwater-seawater interface / A. Arad, U. Kafri. Investigation of vertical groundwater flow in boreholes / M. Bardhan. Optimal monthly operation of interconnected hydroelectric power storages / A. I. McKerchar. The chalk groundwater tritium anomaly - a possible explanation / S. S. D. Foster. Short communication : A note on the heat dispersion effect on thermal convection in a porous medium layer / H. Rubin. Book reviews : Symposium on advanced techniques in river basin management : the trent model research programme, Birmingham 1972 / R. T. Clarke. World climatology : an environmental approach by J. C. Lockwood / F. Dixey. Environmental remote sensing : applications and achievements by E. C. Barnett and L. F. Curtis / F. Dixey. Fluvial processes in instrumented watersheds : studies of small watersheds in the British Isles by K. J. Gregory and D. E. Walling / F. Dixey. The structure of Marine Ecosystems by J. H. Steele / S. J. de Groot. Recent publications. Notes.