1. Introduction  
2. HAWK-I Observations and Data Analysis  
3. Color-Magnitude Diagrams for Selected Clusters in the CNC  
4. NIR Excess Fractions and Ages of the Different Clusters in the CNC  
5. The Size of the Stellar Population in the CNC  
6. Search for Faint Star Clusters and Results on the Spatial Distribution of the Young Stars  
7. Search for Protostellar Jets  
8. Summary and Conclusions  