1. SPIRITS: SEARCHING FOR EXTRAGALACTIC INFRARED TRANSIENTS AND VARIABLES  
2. SPIRITS VARIABLES AND SPRITES  
3. HST FOLLOW-UP OF SPIRITS VARIABLES  
4. IR LIGHT-CURVE CLASSIFICATION  
5. ASTROMETRIC REGISTRATION  
6. INFRARED TRANSIENTS AND SPRITES  
7. LUMINOUS PERIODIC INFRARED VARIABLES  
8. LUMINOUS IRREGULAR INFRARED VARIABLES  
9. SUMMARY