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By R. BRAITHWAITE, M.D. 



Part IV. is preparing, and will complete the First Section of Twelve Plates, 



It will comprise the elegant family of Fissidentacea-, with three Plates, and also a Glossary of Botanical 

 Terms used in Bryology. 



The previows Parts— Andreaeace^e, -with two Plates ; Buxbaumiacea:; and Gcorgiacete, with two Plates ; and 

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