400 Index. 



Sticklebacks, their nests and ova described, 322. 

 Sun, central, notice of, 376. 



Teleology, of the skeleton of fishes, 216. 



Thomson, Allen, M.D., Professor of Physiology in the University 

 of Edinburgh, on the co-existence of ovigerous and spermatic 

 capsules on the same individuals of the Hydra viridis. Com- 

 municated by the Author, 281. 



Vanilla, on the production of, in Europe; 382. 



END OF VOLUME FORTY-TWO. 



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