Ziegler 1956 Journal March 25 Point Isabel, Contra Costa Co., Calif. (CONT.) "LOW" TRAPS, MUS LOW 40' FROM WATER EDGE OF SARCINIA MUS LOW MICROTUS LOW BADLY EATEN SARCA SAVED - 20' TALSO,HF. 20,# FROM WATER EDGE OF SARCL MUS LOW 30' FROM " " " " MICROTUS HIGH MUS HIGH MUS HIGH MICROTUS HIGH MUS ?? LOW 75' FROM WATER EDGE OF SARCL (SARCO - WHITE-BENEATH, REDDISH HAIR INEAR) MANY TRAPS SET IN RUNS IN SPHICORNIA THAT SHOWED RODENT TRACKS IN MUD WERE SAVING - BLOOD ON ONE BUT NO HMR OR ANYTHING ELSE - MAYBE RATIOS HEADING FOR BAY MARGIN. 2OR 3 TRAPS WERE WET OUT I THINK JUST FROM SURFACE MOISTURE FOR, ALTHO GROUND ON BAY SIDE OF UNKNW (SEE SKETCH) WAS VERY SOGGY I DON'T THINK THE HIGH TIDE REACHED THE TRAPS. ON BORDER OF SPHICORNIA AT WATER EDGE IS A 15 FOOT BAND OF SOME SORT OF GRASS OR SEDGE 8 INCHES HIGH GROWING-IN MUD RIGHT dOWN INTO WATER - TOO SOFT TO SET TRAPS HERE . THE 10 TRAPS SET IN SPHICORNIA BETWEEN ROAD & MARSHY WERE ON FAIRLY DRY GROUND & IN MOST AWERS THE SAGIC IS ONLY 2-3 INCHES HIGH & SPARSE. TRAPS WERE SET BESIDE LOGS OR IN HIGHER CHUMPS OF SARCL THO.