C. ZIEGLER 1954 [TRANSCRIBED] JOURNAL SEPT 12. SAN BRUNO CITY PARK, SAN MATEO CO., CALIF. SET 20 MOUSE TRAPS ALONG CREEK BED BACK OF PARK IN WILLOW THICKETS, BRUSH HEAPS & BLACKBERRY THICKETS. Z-23M MICROTUS CALIFORNICUS α IN BRUSH HEAP. STOMACH - VEG. MATTER, PARASITES. Z-24M PEROMYSCUS CALIFORNICUS ? IN BRUSHY BULLY. PARASITES. STOMACH - VEG. MATTER. 2 WELL-DEVELOPED EMB'S LEFT SIDE, 4 SCARS RIGHT SIDE (COLL.) SEPT 13. SAN BRUNO CITY PARK, SAN MATEO CO., CALIF. (1/2 MI W. PARK) SET OUT 20 MOUSE TRAPS IN CREEK BED LEADING UP INTO HILLS WEST OF SAN BRUNO. BAIT. PEANUT BUTTER. TRAPS USUALLY SET IN 3'S UNDER SHRUBS OR IN BRUSH PILES. Z-25M PEROMYSCUS CALIFORNICUS α IN BRUSH PILE. STOMACH - VEG. MATTER & A LITTLE HAIR (IT'S OWN?). PARASITES. Z-26M REITHRODONOMYS MEGALOTIS ? ON WOODED CREEK BANK. STOMACH - VEG. MATTER.