Vol. VI.] JULY, 1887. [Part 23. 



THE 



Journal of Microscopy 



AND 



Natural SciENCEfi/ifisty^ 



THE JOURNAL OF 



W\t JPosM PirposropirHl ^oriFtg. 



Published C)uartei\ly. 



'Knowledge is not given us to keep, but to impart: its worth is lost 



in concealment." 



EDITED BY 



ALFRED ALLEN, 



Honorary Secretary of the Postal Microscopical So^lw^i v . , ■ 



ASSISTED BY f^^/ti 



SEVERAL MEMBERS OF THE COMMITTEE, f^/^..^^- 



LONDON : 

 BAILLIERE, TINDALL, & COX, KING WILLIAM ST., STRAND, W.C. 



BATH : 

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