CONTENTS. 



Page. 



25, 26. Exchanges in natural history — Magnetic oxide of iron, 212 



27. A parasite of the honey bee, - - - - - - 213 



28. Olmsted's Compendium of Natural Philosophy, " - - 214 



OBITUARY. 



1. Col. George Gibbs, - - - - - - -214 



2. Dr. William Meade, - - - - - - -215 



