X DATES OP PUBLICATION. 



Vol. II, No. 1.* Acknowledged by the American Philosophical Society, April 

 15, 1844. F 



2. Ditto, June 21, 1844. 



3. " July 19, 1844. 



4. " November 1, 1844. 



5. " December 6, 1S44. 



6. " February 7, 1845. 



7. " March 7, 1845. 



8. Bill for printing received, June 24, 1845. 



9. Acknowledged by the American Philosophical Society, July 



lo, 1845. 

 10. 



11. Acknowledged by the American Philosophical Society, De- 



cember 5, 1845. 



12. Acknowledged by the Boston Society of Natural History, 



February 18, 184(5. 



Vol. Ill, No. 1. 



2. Bill for printing received, June 30, 1846. 



3. Receipt acknowledged by the Boston Society of Natural His- 



tory, July 15, 1846. 

 4. 



5. Receipt acknowledged by the Boston Society of Natural His- 



tory, November 29, 1846. 



6. Receipt acknowledged by the American Philosophical Society, 



March 19, 1847. 



7. Ditto, May 7, 1847. 



8. Receipt acknowledged by the Boston Society of Natural His- 



tory, June 16, 1847. 



9. Ditto, October 20, 1847. 

 10. 



11. Receipt acknowledged by the American Philosophical Society,. 



January 7, 1848. 



12. Ditto, April 7, 1848. 



VoL IV, No. 1. Receipt acknowledged by the American Philosophical Society, 

 April 8, 1848. 

 2. 

 3. 

 4. 



5. Receipt acknowledged by the Boston Society of Natural His- 

 tory, March 31, 1849. 

 6. 

 7, 8 in one. Receipt acknowledged by the American Philosophical 

 Society, June 16, 1849. 

 9. 

 10. 

 11. 



12. Received at Boston Society Natural History between January 

 and June 30, 1850. 



Vol. V, No. 1. Receipt acknowledged by the Boston Society of Natural His- 

 tory, June 30, 1850. 

 2. Ditto. 

 3. 

 4. 



5. Receipt acknowledged by the American Philosophical Society, 



December 7, 18:10. 



6. Receipt acknowledged by the Smithsonian Institution, Febru- 



ary :■,, 1851. 

 7. 



* Number given on first signature of each issue. 



