348 SCIENCE PROGRESS 



sphere in the most powerful electric field. Gallardo was the 

 first to note this, and the publication of Vejdowsky and Mrazek's 

 figures have given the most striking confirmation to his theoretical 

 anticipations. The gebildete Laier is so accustomed to the idea 

 that the movable plates of an electrostatic field, the equally- 

 movable (though inseparable) poles of a magnet are the sources 

 of the energy of a field, that it was natural to apply this 

 inadequate conception to the cell-field in Metazoa, and to hold 

 to it even after it became clear that it could not apply to Higher 

 Plants. But the physicist will have no difficulty in accepting the 



kmoplasm. 



5. Ordinary cytoplasmic motion explains the growth of the 

 spindle and the progressive divergence of its ends. 



6. In the completion of the splitting of the chromosomes 

 and the discession of the daughter halves, they behave exactly 

 like flexible inductors suspended in a viscid medium in a magnetic 

 field. 



7. Mitokinetism is the force which determines the partitive 

 division of the formed contents of the nucleus. 



8. Polyasters, even with an odd number of centres, may occur 

 in the fields of a dual force. 



9. No theory of like forces at the centres of the cell-field will 

 account for the typical spindle. 



