CONTENTS 



(AU Rights reserved) 



tkoa 

 I. Actinos^phaeriiim Eichorni. A Biometrical Study in the Mass Rela- 

 tions of Nucleus and Cytuplasm. By Geoffrey Smith. (With 

 4 Plates and 2 Figuies.) . . ' 241 



II. A Preliminary Attenipt to ascertain the Relatiouship betwecn size 

 of Cell and the size of Body in Daphnia magna Straus. By 

 E. Warren. (Witli 2 Figures.) 255 



III. Graduation and Aualysis of a Sickness Table. By W. Palin 



Elderton. (With 3 Figures.) 260 



IV. On the Probable Errors of Frequency Constants. (Editorial.) . 273 



V. Third Report on Hybrids betweeii Waltzing Mice and Albino Races. 

 On the Result of Crossing Japanese Waltzing Mice with " Ex- 

 tracted " Recessive Albinos. By A. D. Darbishire. (With One 

 Figure.) 282 



YI. Mr Bateson's Revisions of Mendel 's Theory of Heredity. By W. F. 



R. VVeldon 286 



VII. Mendel'sLaws and someRecords in Rabbit Breeding. ByF. A.WooDS 299 



VIII. Ueber Asymmetrie bei Gelasimus pugilator Latr. Von Georg 



DUNCKER 307 



IX. Variation and Correlation in Arcella vulgains. By Raymond Pearl 



and Frances J. Dcnbar. (With 2 Figures.) .... 321 



Miscellanea. Craniological Notes. 



(i) Professor von Torök's Attack on the Arithmetie Mean. 



By K. Pearson. (With 2 Figures.) . . . 339 

 (ii) Homogeneity and Heterogeneity in Collections of 



Crania. By K. Pearson 345 



(iü) Preliminary Note on Interracial Characters and their 



correlation in Man. By S. JACOB, A. Lee, and 



K. Pearsox 347 



Inheritance of Finger Prints 356 



Biometrika will appear about four times a year. A volume containing 

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 It is very desirable that a copy of all measurements made, not necessarily 

 for publication, should accompany each paper. In all cases the papers themselves 

 should contain not only the calculated constants, but the distributions from 

 which they have been deduced. 



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