CONTENTS. Vll 



phuric Acid. 18. Exposure of Iron to Air in high regions. 19. Ap- 

 plications of Chromate of Lead in the Arts. 20. Cadmium in Ire- 

 land. 21. Explosion of Fuhninating Powder. 22. Moretti's Ful- 

 minating Acid, 23. Researches on a new Acid universally diifused 

 through Vegetables. 24. Conversion of Gallic Acid into Ulmin by 

 Oxygen Gas. 25. Presence of Oxalic Acid in the Mineral Kingdom, 

 in enormous quantities, in certain plants, and on its advantageous 

 preparation. 2S. Composition, &c., of Formic Acid. 2T. On the 

 Fermentation of Sugar. 28. On a destructible Green Matter, the 

 produce of a Mineral Water 336 



III. Natural History; 



1. Natural Transference of Rocks and Stones. 2. Distance to 

 which Sand and minutely-divided matter may be carried by Wind. 

 3. Rocking-stone, Savoy, Massachusetts. 4. Remarkable oolitic 

 formation of Saratoga, county New York. 5. Native Gold of North 

 Carolina. 6. On Ground Ice, or the Ice of Running Water. 7. 

 Luminous Snow-storm on Lochawe. 8. Effects of Lightning; la- 

 teral discharge. 9. Singular Imperfection in Vision. 10. Insensibility 

 of the Retina. 11. Preservation of Anatomical Preparations. 12. 

 Falling Star seen at mid-day. 13. Prize Questions proposed by the 

 Academy of Sciences for 1826. )4. Zoology .... 360 



XVU. MJBTEOROLOGiCAii Journal . . . . . .373 



Indbx 374 



We are requested by a Correspondent at Leeds to notice the fpl^a^ii* 

 Errata in Taylor's Tables. 



^pr 9.6446087 Tang, of 23« 48' 19", ivad 9.6445987 

 Fo»- 10.8558913 Cot. . .ditto, . reorf 10.S5540 IS 



