CONTENTS. 



NUMBER NINETEEN. 



1. Brand in the Cereals, 177 



2. Mining Report, No. 1 192 



3. American Association of Geologists and Naturalists,. . . . 198 



4. Turning Over a New Leaf, 219 



5. On the Alternation of Generations, etc., 224 



6. Extracts from the Older Journals, 277 



7. Marshes, and their Effects upon Human Health, 283 



8. Farm Houses, 286 



9. Publications, 286 



10. To Our Subscribers, 287 



