If^ith Ten Flates, Royal 410, os. 



CONTRIBUTIONS TO THE KNOWLEDGE OF RHABDOPLEURA 

 AND AMPHIOXUS. 



By E. RAY LANKESTER, M.A., LL.D., F.R.S. 

 London: J. & A. Chuechill, 7 Great Marlborough Street. 



Quarterly Journal of Microscopical 



Science. 



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 for this sum (prepaid) the Journal is sent Post Free to any part 

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BACK NUMBERS of the Journal, which remain in print, are 

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The issue of Supplement Numbers being found inconvenient, 

 and there being often in the Editor's hands an accumulation of 

 valuable material, it has been decided to publish this Journal at 

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