HOLE:—REGENERATION OF SAL FORESTS. 
Fig. 1. Several of the Sal seedlings in pots 14 and 19 have shed their leaves as a result of placing 
dead Sal leaves on the surface of the soil. In pots 15 and 18, to which no dead leaves were added, 
the seedlings are quite healthy. Photograph taken 3^ months after the dead leaves were added. 
Fig. 2. Photograph of Sal seedlings growing in sand, taken 3| months after a layer of dead Sal 
leaves had been placed on the surface of the sand in pot 23. No dead leaves were added to pot 22. 
No injurious effect has been produced by the dead leaves. See present paper para. 19. 
PLATE II, 
