446 CHEMICAL NOTES — GENERAL. 



noticed a very interesting early paper on the presence of this acid in a fungus. 

 In 1804, Dr. Robert Scott of Dublin contributed (Trans. Linn. Soe. London, 

 1804, p. 262) a paper describing the crystallization of oxalic acid on the sur- 

 face of a dried specimen of Boletus sulphureus. He describes the efflorescence as 

 consisting of needle-like crystals of the free acid mixed with a small proportion 

 combined with "vegetable fixed alkali." This would be potash. 



EXPLANATION OF PLATE L. 

 Fig. 1- Sfelagmitic ferruginous deposit. Fairy Dell. 

 Fig. 2. The same, end view. 



Fig. 3. Twigs with ferruginous coating. Cranky's Creek Falls. 

 Fig. 4. Thickly coated twig, broken to show core and structure. Cranky's 



Creek Falls. 

 Fig. 5. Similarly coated twigs. Cranky's Creek Falls. 

 Fig. 6. Fruit of Hakea dactyloides, thickly coated. Partly stripped. Cranky's 



Creek Falls. 

 Fig. 7- Leaf, probably H. saligna. Cranky's Creek Falls. 

 (All figures x 4/5.) 



