102 



C. Staudinger & Co., Giessen. 



C. Department for Forrestry and Science: 



I. Heyer-Staudinger's tree-gauges of wood, acknowledged to 

 be the best existing gauge, being very light and giving veiy exact 

 results. Suitable for any climate. 



Fig. 4. 



II. Walking-stick gauge, made in the form of a convenient 

 forrester's walking-stick with suitable handle. 



Gauges of aluminium or brass, made for the purposes of particularly 

 exact calculations. 



Illustrated and descriptive catalogue gratis. 



