SUPPORTING RESEARCH . . . .. .61

 Toxicity of 1,3-difluoro-2-propanol (DFP) . .. 61

 Laboratory bioassays of diphacinone baits . ... 62

 Acute oral toxicity of CAT (DRC-2698;
 N-(3-chloro-4-methylphenyl) acetamide) to male albino rats 65

 Markers for toxic grease formulations . . .. 66

 Evaluation of adhesives for foliar application of methiocarb 66

 Evaluation of rodent glues . . . ... .67

 Automatic data-acquisition system for measuring the bait
 intake of ricefield rats (R. r. mindanensis) . ... 67

 Drug-induced taste aversion in ricefield rats (R. r.
 mindanensis): factors affecting drug effectiveness and
 feasibility of use for reducing crop damage . ... 68

 Laboratory tests of the repellent activity of selected
 chemicals for protecting corn from damage by cotton rats
 (Sigmodon hispidus) . . . . ... 75

 Nonlethal electric barriers for control of ricefield rats 76

 Development of highly preferred baits for quelea . .. 78

 Design modification trials of sublethal electric barriers 82

 Coulometric event counter problems corrected . ... 85

 Chemical analyses of Philippine ricefield samples for
 diphacinone and warfarin residues . . .... .85

 A potential new wildlife marking agent . . .. 85

 Bird-resistant sorghum research . . ... .92

RESEARCH UTILIZATION . . . .. .. .99

 Socio-economic evaluation of vampire bat control in Latin
 America . . . . ... ....... .99

 Vampire bat control workshop . . . .... 100