July 6, 1905] 



NA TURE 



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KARYOKINESIS 



in root of Alliiiin, about 200 Serial Sections of an 



entire root-tip. In case, lo 6. 

 APICAL CELL in .lsj,i(lii(iii rootlet, about 120 Serial 

 Sections, also shows stages in Cell division. In case, T'6. 



Those interested are invite.l to send for the above ai d a selection 

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MARINE ORGANISMS, Hydrozoa, Crustacea, Annelida, ,'ic., polyps 

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The following animals can always be supplied, either living 

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