&NA;SINCE THE ADVENT of lumbar anesthesia as an aid to surgery, there has been a slow but steady improvement in techniques and solutions brought about by workers who were continually striving to obtain added safety, with consistent anesthesia. Earlier drugs have been replaced by newer ones, with a view to lessening toxicity in some cases, of increasing length of anesthesia in others. The trend has been toward consistent anesthesia, and, with this in view, barbotage for dilution, and fractional dosage technique have been the most important changes in technique in the past two decades. It is to these two, dilution, and fractional dosage technique, that we wish to draw particular attention, with special reference to a low dilution of procaine in normal saline, its use and technique in continuous lumbar anesthesia.