Journal of Hydrology. Vol. 33 No. 3,4 (1977). 

 - Amsterdam : Elsevier Scientific Publishing Company.  [date of publication not identified] 
 - p. 
<br/><br/> It contains of Papers, Book Reviews and Notes on May 1977 in Vol. 33 No. 3,4. 
<br/><br/>Research papers : The age of groundwater in the Lincolnshire Limestone, England and its relevance to the flow mechanism / R. A. Downing, D. B. amith, F. J. Pearson, R. A. Monkhouse and R. L. Otlet. Recharge to Bunter sandstone determined from lysimeters / R. Kitching, T. R. Shearer and S. L. Shedlock. Theoretical probability distribution of critical hydrologic events by the partial duration series method / G. Calenda, A. Petaccia and A. Togna. A model of transpiration and interception loss from a spruce forest in Plynlimon, central Wales / I. R. Calder. On the fluctuations in levels of closed lakes / D. J. Gates and M. Diesendorf. Criterion to choose step length for some numerical methods used in hydrology / V. P. Singh. Sensitivity of some runoff models to errors in rainfall excess / V. P. Singh. Optimal filtering techniques for hydrological forecasting / A. H. Maissis. Validation of an axisymmetric pseudo-unconfined time-variant digital model / Y. K. Chan. Type curves for recovery of a discharging well with storage / P. R. Fenske. Finite-element analysis of groundwater flow in multiaquifer systems, II. A quasi 3D flow model / K. Fujinawa. The calibration of sharp crested weirs by the pondage drawdown method / F. A. Johnson and C. S. Green. Non-penetrating well in a semi-infinite mediumwith non-linear flow / P. Basak. A laboratory model to investigate the soil moisture conditions on a draining slope / M. G. Anderson and T. P. Burt. Short communications : The spacial distribution of groundwater discharge into the littoral zone of a New Zealand lake / P. H. John and M. A. Lock. Profile desaturation during sediment deposition in a groundwater recharge trench / K. K. Watson and F. D. Whisler. Discussion : A discrete linear cascade model for hydrology - a comment / T. Bree. A discrete linear cascade model for hydrology - a reply / K. M. O'Connor. Book  reviews : Grouting in engineering practice by R. Bowen / D. U. Deere. Isotopes of water - a bibliography by W. K. Summers and C. J. Sittler / E. Gaspar.