A. 



n. 



Section from a tree 200 years old (sp. ^r. O-r.27). Slow 

 regular growth in a dense forest. Wood of best quality for 

 cleaving : used for violins, &c. Forest of Chamounix (Haute 

 Savoie). Altitude 4,050 feet. 



Section from a tree loO years old (sp. gr. 0-458). Regular 

 structure, even and moderately fast growth. Excellent wood 

 for cai-pentry and joinery. Foi-est of Grande CMiartreuse (Isere). 

 Altitude 4,420 feet. 



/ Section from a tree 35 years old (sp. gr. 0-447). Very 

 rapidly grown wood produced at a low altitude. Soft wood 

 ■ ' of inferior quality. Forest of Saint Laurent du Pont (Isere). 

 Altitude 1,545 feet. 



