Micropedological and some mineralogical studies were conducted on Orthic Dark Gray, Dark Gray Luvisol and Gleyed Gray Luvisol profiles. Descriptions and interpretations are given for the micro-morphological features of the various horizons. The rearrangement of plasma constituents has been carried out by pedologic processes (eluviation and illuviation). The rearrangement has resulted in eluviated horizons which are plasma deficient and illuvial horizons which are plasma rich. The degree to which similar horizons in different profiles have developed is believed due to differences in drainage, topography and microclimate.