TABLE OF CONTENTS 
FOREWORD . 
INTRODUCTION . 
GENERAL 
CODING THE RELEASE INFORMATION . 
CODING THE RELEASE-RECOVERY INFORMATION 
KEYPUNCHING INSTRUCTIONS FOR THE DRIFT BOTTLE 
CODING FORM 
APPENDIX I - DRIFT BOTTLE CODING FORM (PROVISIONAL) 
LIST OF TABLES 
TABLE I. COUNTRY CODE . 
TABLE II. INSTITUTION CODE 
TABLE III. MODE OF RELEASE CODE . 
TABLE IV. BOTTLE TYPE CODE 
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