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PAGE SIX | | ee ee SF 7-855 | | CS CAL Read aK SCiERCE. RIES an READE OR SELENE HEARD. TAPES., “AND--HE STATED: 1 LONE TAPE WE HEARD SOUND YHICH HE BELIEVES WAS THE CALL OF A TREE ae FROG. HE STATED TREE FROGS AT THIS TIME OF YEAR WOULD NOT BE OVER AN ELEVATION OF 2,922 FZET BUT COULD BE ANYYRERE IN SAN FRANCISCO BAY AREA. HE STATES THAT THEY LIVE IN A NATURAL - ENVIRONMENT, 1-2. RURAL ARER, DO NOT LIVE IN A HEAVILY WOODED - LAREA, USUALLY BE FOUND PZAR A SUNRY OPEW.AREA, ESPECIALLY WITH. a “A NEARBY POND OR BROOK, NEVER NEAR COLD FAST RUNNING STREAM OR SALT OR BRACKISH VATER- HERSATCLOGIST STATED HE ALSO THOUGHT HE DETECTED PART OF A OVAIL SOUND AND ADVISED THAT CUAIL OCCUPY : erie esis « _ THE SANE GENEPAL AREA aS. TREE FROGS. ON THE SECOND TAPE, ee Ne ie 2 FEDRNgY 16, 1974, THE F321 LA2 AND THE SAN “FRANCISCO OFFICE = RAVE DISCOVERED TONES IN MUTIPLES OF 63 HZ. A SURVEY If THE “SAE FRANCISCO DIVISION REFLECTS THAT THE BAY AREA RAPID TRANSIT.” ‘SYSTEN | Ii) CONVERTING POYEP FRO AC TO DC AND EMPOUSRING — THEIR = RAIL, PUT OUT -SIMILAR-TYPE TONES in THE SANE ULTIPLES TODAY, SPE CIAL AGENTS THIS OFFICE HAVE OPERATED A TAPE RECORDER - “aN THE VICINITY OF THE EMUIPHENT THAT PUTS OUT THESE TOMES. AND “THs IS BEING FCRUARDED TO THE FBI LAB FOR COMPARISON ITH THE, : “END PAGE SIX A Se ee ge ee me, =: : ‘ - " X, wang. + x 7 Ae rs they EC a oe “hes age A ame aye Sad 2 4 wee or ee ad ba —_ 3. a tg a ne mer