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'Xll,-'— Natural History Notes from M. M's I. M. Survey Steamer 

 " Investigator"," Commander R. F. Hoskyn, R. N., Command- 

 ing — No. 25, The Vegetation of the Coco Group. — By D. Pkain, 283 



XIII. — Notes on some native Ephemeridse in the Indian Museum, 

 Calcutta.— By The Rev. A. E, Eaton, M. A., F. E. S. 

 Oommunicated by The Superintendent of the Indian Museum, 406 



